CN104514647B - Internal combustion engine - Google Patents

Internal combustion engine Download PDF

Info

Publication number
CN104514647B
CN104514647B CN201410514006.0A CN201410514006A CN104514647B CN 104514647 B CN104514647 B CN 104514647B CN 201410514006 A CN201410514006 A CN 201410514006A CN 104514647 B CN104514647 B CN 104514647B
Authority
CN
China
Prior art keywords
mentioned
oil sealing
fixing component
chain guard
retainer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201410514006.0A
Other languages
Chinese (zh)
Other versions
CN104514647A (en
Inventor
栗田洋孝
武田善晴
川合启之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Seiki Co Ltd
Original Assignee
Aisin Seiki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2013-209162 priority Critical
Priority to JP2013209162A priority patent/JP6197552B2/en
Priority to JP2014-014274 priority
Priority to JP2014014274A priority patent/JP6191479B2/en
Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Publication of CN104514647A publication Critical patent/CN104514647A/en
Application granted granted Critical
Publication of CN104514647B publication Critical patent/CN104514647B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00Casings, e.g. crankcases or frames
    • F02F7/0065Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/008Sound insulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00Arrangements of sealings in combustion engines 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00Arrangements of sealings in combustion engines 
    • F02F11/007Arrangements of sealings in combustion engines  involving rotary applications
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00Casings, e.g. crankcases or frames
    • F02F7/0065Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073Adaptations for fitting the engine, e.g. front-plates or bell-housings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00Casings, e.g. crankcases or frames
    • F02F7/0065Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073Adaptations for fitting the engine, e.g. front-plates or bell-housings
    • F02F2007/0078Covers for belt transmissions

Abstract

It provides a kind of in the case where oil sealing is installed on bent axle by the oil sealing fixing component with chain guard independence, also ensures that the internal combustion engine of leakproofness and the chain cover structure of internal combustion engine between chain guard and oil sealing fixing component.This engine (100) (internal combustion engine) has:Timing chain cover (TCC) (20) is assemblied in the engine main body (10) with bent axle (40);Oil sealing (5) is installed near the timing chain cover (20) of bent axle (40);Retainer made of aluminium alloy (50) is configured at the side opposite with engine main body (10) of timing chain cover (20), for fixing oil sealing (5);And containment member (6), it is configured between retainer (50) and timing chain cover (20).

Description

Internal combustion engine
Technical field
The present invention relates to internal combustion engines and the chain cover structure of internal combustion engine, more particularly to have the chain guard for being assemblied in body of the internal-combustion engine With for being fixedly installed in the chain cover structure of the internal combustion engine of oil sealing fixing component made of the metal of the oil sealing of bent axle and internal combustion engine.
Background technology
In the past, it is known that have the chain guard for being assemblied in body of the internal-combustion engine and the made of metal for being fixedly installed in the oil sealing of bent axle Into the internal combustion engine of oil sealing fixing component etc. (for example, referring to patent document 1).
Above patent document 1 discloses a kind of internal combustion engine and its oil enveloping structure, has:It is assemblied in cylinder block (internal combustion owner Body) resin made of timing chain cover;It is pressed into the oil sealing of (being installed on) bent axle;And it is formed from cylinder block side (inside) is embedded The made of metal retainer (oil sealing fixing component) of oil sealing is kept in the state of the inserting hole of the bent axle of timing chain cover.At this specially In the oil enveloping structure for the internal combustion engine that sharp document 1 is recorded, in the bent axle insert oil sealing and made of metal retainer extended from cylinder block Made of metal retainer is configured across the side of cylinder block under state, in the outside of made of metal retainer (side opposite with cylinder block) Covered with timing chain cover.Also, timing chain cover made of the resin of outside (side opposite with cylinder block) and made of metal are kept Frame is fixed on cylinder block jointly with bolt.In addition, made of metal retainer have can be with flange part (platform mutually chimeric around bent axle Stage structure), it is common in the state of the spot-facing of timing chain cover that the flange part of made of metal retainer of inside is made to be embedded in outside It is fixed.
Existing technical literature
Patent document
Patent document 1:Special open 2010-32021 bulletins
Invention content
Problems to be solved by the invention
However, the oil enveloping structure for the internal combustion engine recorded according to above patent document 1, it is contemplated that protected in the part equipped with oil sealing Card is relative to the leakproofness of the oil in cylinder block (body of the internal-combustion engine), and on the other hand, in made of metal retainer, (oil sealing fixes structure Part) and resin made of the bent axle near zone that is fitted into of timing chain cover, the oil in cylinder block can be by resulting from fitting portion sometimes Minim gap to outside leak out.Accordingly, there exist oil leakproofness it is insufficient the problem of.
The present invention was completed to solve the above problem, of the invention 1 be designed to provide by with chain guard Independent oil sealing fixing component also ensures that close between chain guard and oil sealing fixing component in the case that oil sealing is installed on bent axle The internal combustion engine of envelope property and the chain cover structure of internal combustion engine.
The solution to the problem
To achieve these goals, the internal combustion engine of the 1st aspect of the invention has:Chain guard is assemblied in bent axle Body of the internal-combustion engine;Oil sealing is installed near the chain guard of bent axle;Oil sealing fixing component made of metal, is configured at chain guard The side opposite with body of the internal-combustion engine, for fixing oil sealing;And the 1st containment member, be configured at oil sealing fixing component and Between chain guard.
In the internal combustion engine of the 1st aspect of the present invention, as described above, have:Chain guard is assemblied in body of the internal-combustion engine; And oil sealing fixing component made of metal, configuration is in the side opposite with body of the internal-combustion engine of chain guard, for fixing oil sealing, The 1st containment member is being equipped in a manner of being configured between oil sealing fixing component and chain guard so as to which chain guard is assemblied in internal combustion owner It body and is configured in the chain cover structure of oil sealing fixing component on the outer surface of chain guard, set on chain guard and oil sealing fixing component Between the 1st containment member become impaction state, can make that the 1st containment member is tightly attached to chain guard and oil sealing fixing component is mutually opposite Surface.The leakproofness to the oil in body of the internal-combustion engine is ensure that around the bent axle equipped with oil sealing as a result, and can also be utilized Sealing function possessed by 1st containment member come avoid oil escaped to from the gap of overlapped chain guard and oil sealing fixing component The outside of body of the internal-combustion engine.As a result, in the situation that oil sealing is installed on to bent axle by the oil sealing fixing component with chain guard independence Under, also ensure that the leakproofness between chain guard and oil sealing fixing component.
In the internal combustion engine of the above-mentioned 1st aspect, the 2nd containment member is preferably also equipped with, above-mentioned 2nd containment member is configured at chain Between cover and body of the internal-combustion engine.According to this composition, in addition to oil can be avoided using sealing function possessed by the 1st containment member Outside is escaped between chain guard and oil sealing fixing component, moreover it is possible to equally be kept away using sealing function possessed by the 2nd containment member Exempt from the outside that oil escapes to body of the internal-combustion engine from the gap of body of the internal-combustion engine and chain guard.As a result, it can further maintain internal combustion engine Leakproofness.
In the composition for being further equipped with above-mentioned 2nd containment member, preferred oil is sealed fixing component and is abutted comprising the 1st chain guard Portion, above-mentioned 1st chain guard abutting part are abutted with chain guard near the 2nd containment member, are configured to, and are existed using the 2nd containment member It is equipped in the state of the 1st gap between chain guard and body of the internal-combustion engine, the 1st chain guard abutting part is along from the lateral chain guard of oil sealing fixing component The 1st direction be connected to chain guard.According to this composition, chain guard can inhibited using the 1st chain guard abutting part of oil sealing fixing component Part corresponding with region near the 2nd containment member in the state of the state that excessively floats of direction in the 1st gap of increase, It is spaced apart the 1st appropriate gap with body of the internal-combustion engine using the 2nd containment member chain guard is configured.Can reliably it exist as a result, 2nd containment member nearby carries out positioning of the chain guard relative to body of the internal-combustion engine in short transverse (the 1st direction), also, separates The chain guard of 1st gap configuration can inhibit the shaking that the vibration by unexpected external force, body of the internal-combustion engine is brought.
In the composition for being further equipped with above-mentioned 2nd containment member, it is preferably configured as in chain guard and oil sealing fixing component group In the state of body of the internal-combustion engine, the 2nd containment member is more than anti-work of the 1st containment member to chain guard to the reaction force of chain guard Firmly.According to this composition, can prevent from reducing the 2nd containment member caused by the reaction force of the chain guard of the 1st containment member Situation about excessively being compressed on the 1st direction in the 1st gap.That is, state of the 2nd containment member with appropriate deflation amount can be kept to make The sealing function of 2nd containment member continues, therefore can reliably avoid oil using sealing function possessed by the 2nd containment member Outside is escaped to from the gap of body of the internal-combustion engine and chain guard (the 1st gap).In addition, the 2nd containment member will not be applied excessively Deformation, therefore the 2nd containment member can be inhibited to deteriorate, durability is inhibited to deteriorate.
In the internal combustion engine of the above-mentioned 1st aspect, it is preferably also equipped with pin component, above-mentioned pin component is with to oil sealing fixing component side Prominent mode is set on body of the internal-combustion engine, and oil sealing fixing component includes location hole, and above-mentioned location hole is used for by embedding with pin component It closes to carry out positioning of the oil sealing fixing component relative to body of the internal-combustion engine.According to this composition, make the pin component of body of the internal-combustion engine (chimeric) is inserted in the location hole set on oil sealing fixing component made of metal, thus, it is possible to improve oil sealing fixing component relative to interior The fixed position precision of combustion engine main body.As a result, can oil sealing be maintained high relative to the installation site precision of bent axle.
In the internal combustion engine of the above-mentioned 1st aspect, preferably above-mentioned oil sealing fixing component includes the 1st positioning region, above-mentioned 1st positioning Portion is connected to chain guard on the 2nd direction orthogonal with the extending direction of bent axle, thus carries out chain guard relative to oil sealing fixing component Positioning on the 2nd direction.According to this composition, chain guard phase suitably can be maintained using the 1st positioning region of oil sealing fixing component For rigging position of the oil sealing fixing component on the 2nd direction (direction orthogonal with bent axle).It can be suitably maintained as a result, across The mutually opposite oil sealing fixing component of 1 containment member and chain cover on the relative position relation on the 2nd direction orthogonal with bent axle.Separately Outside, it can inhibit the phenomenon that the vibration by unexpected external force, body of the internal-combustion engine causes chain to cover on generation position offset on the 2nd direction.
In the composition for including the 1st positioning region in above-mentioned oil sealing fixing component, preferably the 1st positioning region, which includes, to be had for will be oily Envelope fixing component is assembled to the peripheral part of the assembling protrusion of the pilot hole of body of the internal-combustion engine.According to this composition, oil can will be set on The peripheral part of the assembling protrusion of envelope fixing component also serves as the positioning for carrying out chain guard relative to oil sealing fixing component on the 2nd direction The 1st positioning region, therefore do not need to set dedicated 1st positioning region, can correspondingly simplify composition.
In such a situation it is preferred to which chain guard includes the 2nd positioning region, above-mentioned 2nd positioning region includes that above-mentioned assembling protrusion can be supplied It is inserted into and chimeric assembling protrusion embedded hole, is configured to the 1st of the peripheral part for including assembling protrusion using oil sealing fixing component The 2nd positioning region for including the raised embedded hole of assembling of positioning region and chain guard carries out chain guard relative to oil sealing fixing component the 2nd Positioning on direction.According to this composition, only by peripheral part (the 1st positioning region) week for the assembling protrusion for making oil sealing fixing component The assembling protrusion embedded hole (the 2nd positioning region) for being embedded in shape chain guard is easy to carry out chain guard relative to oil sealing fixing component Positioning on the 2nd direction.In addition, the 1st positioning region and the 2nd positioning region week shape be fitted into, therefore chain guard can be improved relative to oil Seal positioning accuracy of the fixing component on 2nd direction orthogonal with bent axle.
In the internal combustion engine of the above-mentioned 1st aspect, preferred oil envelope fixing component includes the 2nd chain guard abutting part, above-mentioned 2nd chain guard Abutting part is connected to chain guard near the 1st containment member, is configured to, using the 1st containment member in oil sealing fixing component and It is equipped in the state of the 2nd gap between chain guard, the 2nd chain guard abutting part edge is supported from the 1st direction of the lateral chain guard of oil sealing fixing component It is connected to chain guard.According to this composition, can utilize the 2nd chain guard abutting part of oil sealing fixing component by chain guard and oil sealing fixing component it Between the 2nd gap remain fixed intervals, therefore the 1st containment member between chain guard and oil sealing fixing component can be kept To have the state of appropriate deflation amount.Therefore, the leakproofness between chain guard and oil sealing fixing component can steadily be maintained.
In the internal combustion engine of the above-mentioned 1st aspect, preferably chain guard includes oil sealing fixing component holding section, and above-mentioned oil sealing fixes structure Part holding section near the 1st containment member by the bent axle inserting hole of oil sealing fixing component be sticked in oil sealing fixing component with The opposite side of chain guard, is configured to, and the 2nd gap is being equipped between oil sealing fixing component and chain guard using the 1st containment member Under state, oil sealing fixing component holding section is along from the of the lateral oil sealing fixing component of one opposite with chain guard of oil sealing fixing component 1 direction is connected to oil sealing fixing component.According to this composition, oil sealing fixing component holding section can be utilized in chain guard relative to oil sealing Fixation means arrangement arranged will be between the 2nd between chain guard and oil sealing fixing component in the state of the 1st direction side (body of the internal-combustion engine side) Gap remains fixed intervals, therefore the 1st containment member being set between chain guard and oil sealing fixing component can be made to remain with suitable When the state of deflation amount.Therefore, the leakproofness between chain guard and oil sealing fixing component can steadily be maintained.In addition, oil sealing can be used Chain guard is easily maintained at the 1st direction side (body of the internal-combustion engine side) by fixing component holding section, thus can easily inhibit across The chain guard of 2nd gap configuration causes it to be detached from from oil sealing fixing component due to the vibration of unexpected external force, body of the internal-combustion engine.
In such a situation it is preferred to be configured to, oil sealing fixing component holding section is by being also connected to oil sealing fixing component Chain guard of the inner face of bent axle inserting hole so as to also play on 2nd direction orthogonal with the extending direction of bent axle is consolidated relative to oil sealing Determine the function of the positioning region of component.According to this composition, the oil sealing fixing component holding section of chain guard can be utilized suitably to maintain chain guard With relative position relation of the oil sealing fixing component on 2nd direction orthogonal with bent axle.It can suitably remain close across the 1st as a result, Seal the mutually opposite chain guard of component and the relative position relation of oil sealing fixing component.In addition, it can inhibit by unexpected external force, internal combustion The vibration of owner's body causes chain to cover on the 2nd direction, and there is a situation where position offsets.
In the internal combustion engine of the above-mentioned 1st aspect, at least one party in preferred oil envelope fixing component and chain guard includes all shape walls, When above-mentioned week shape wall is by the extending direction from bent axle from a manner of encirclement oil sealing fixing component and the overlapped region of chain guard All shapes are set as, the 1st mutually opposite side projects upwards in oil sealing fixing component and chain guard.
In internal combustion engine in one aspect of the invention, as described above, in oil sealing fixing component and chain guard at least One side is equipped with all shape walls, and oil sealing fixing component and chain guard phase mutual respect are surrounded when above-mentioned week shape wall is with from the direction that bent axle extends The mode in folded region is set as all shapes, and in oil sealing fixing component and chain guard, the 1st mutually opposite side projects upwards, and thus, it is possible to utilize All shape walls in oil sealing fixing component and the overlapped region of chain guard are surrounded to all shapes, it will be with spinning movement of bent axle etc. to occur The noise that the vibration of the body of the internal-combustion engine in source causes, particularly the valve timing component near the inside of chain guard and bent axle shake The dynamic noise (action sound of the engagement action of timing chain and sprocket etc.) brought surrounds the inside to all shape walls.That is, week can be utilized All shape walls of shape setting make the noise (radiation sound) of body of the internal-combustion engine be not easy (diffusion) to escape to outside.At this point, for example with inciting somebody to action Chain guard with the vibrational energy that body of the internal-combustion engine vibrates be transformed to frictional energy (thermal energy) come the vibration for seeking to reduce chain guard and with Reduction noise situation it is different, employed in the present invention using will not the week that mechanicalness goes bad occur as time goes by The noise of body of the internal-combustion engine is surrounded on the composition of the inside of this week shape wall by shape wall, therefore noise reducing effect will not be with Time deteriorates (reduction) by ground.As a result, it can chronically maintain the effect of noise caused by inhibiting body of the internal-combustion engine vibration.
In addition, in the internal combustion engine in terms of said one, at least one party in oil sealing fixing component and chain guard is equipped with week All shape walls of shape, thus, it is possible to which the rigidity of oil sealing fixing component and chain guard is respectively increased, therefore can inhibit the vibration of body of the internal-combustion engine Significantly it is transmitted to oil sealing fixing component and chain guard.The long-time service of internal combustion engine is not interfered with as a result, can reduce body of the internal-combustion engine The oil sealing fixing component brought of vibration and chain guard vibration caused by noise (radiation sound from body of the internal-combustion engine to outside that spread from Sound) level itself.
In the internal combustion engine of the above-mentioned 1st aspect, preferably by the sky between the oil sealing fixing component and chain guard of the encirclement of all shape walls Between form Helmholtz's sympathetic response portion, and structure is fixed by adjusting the top of all shape walls oil sealing opposite with the top of all shape walls The size in the gap between the opposite face of at least one party in part and chain guard is set as having defined resonance frequency.According to this It kind forms, it being enclosed between oil sealing fixing component and chain guard to be readily formed and be used as Helmholtz's sympathetic response portion by all shape walls Space.Also, adjust size (top of all shape walls and the oil in the gap of the inlet portion in the space as Helmholtz's sympathetic response portion Clearance gap between envelope at least one of fixing component and chain guard opposite face) so that there is performance to disappear in Helmholtz's sympathetic response portion The resonance frequency (such as radiation sound is maximum value and its neighbouring frequency) of audio fruit, therefore can utilize what is surrounded by all shape walls Caused by space (Helmholtz's sympathetic response portion) between oil sealing fixing component and chain guard effectively cancels out the vibration of body of the internal-combustion engine Specific frequency band in noise (radiation sound) (radiation sound is maximum value and its neighbouring frequency).At this point, the top of all shape walls End does not contact, therefore oil sealing fixing component and chain guard (all shape walls) do not occur to be frictionally maintained as the last of the twelve Earthly Branches across gap with opposite face The spatial form in Mu Huozi sympathetic responses portion.As a result, it is sought with the vibrational energy of body of the internal-combustion engine is transformed to frictional energy etc. Ask the situation for reducing noise different, in addition to can be using will not occur all shape walls that mechanicalness goes bad as time goes by and continue Other than the effect for inhibiting noise diffusion, moreover it is possible to be efficiently reduced using the space of the function in lasting performance Helmholtz's sympathetic response portion Noise caused by the vibration of body of the internal-combustion engine (radiation sound) is horizontal in itself.In addition, " size in gap " in the present invention is not only Refer in the state of oil sealing fixing component and chain guard relative configuration in the 1 section top of all shape walls and oil sealing corresponding thereto The gap length of the opposite face of fixing component or chain guard also implies that the gap length along all shape wall week shapes encircling space The meaning of perimeter when (Helmholtz's sympathetic response portion).That is, this is because Helmholtz's sympathetic response be the top based on all shape walls to Volume (product of the top widths of all shape walls, relative spacing (gap length) and perimeter) between its opposite opposite face and empty Between volume (volume in Helmholtz's sympathetic response portion) ratio caused by.
In the internal combustion engine of above-mentioned 1st aspect, preferably all shape walls include:1st week shape wall, from oil sealing fixing component to chain guard Extension;And the 2nd week shape wall, on 2nd direction orthogonal with the 1st direction that bent axle extends regulation is separated with the 1st week shape wall Interval relative configuration, from chain guard to oil sealing fixing component extend.According to this composition, when looking down, the 1st week shape wall can be formed Or either one in the 2nd week shape wall surrounds all shape walls of the opposing party from outside week shape.That is, fix structure using becoming from oil sealing At least double knot as the 1st week shape wall that part extends to chain guard and the 2nd week shape wall extended from chain guard to oil sealing fixing component All shape walls of structure, can the space between oil sealing fixing component and chain guard outer edge near zone week shape form curved structure (sound-insulating structure).The noise generated in the inside of chain guard the leakage caused by the vibration of body of the internal-combustion engine can be further suppressed as a result, Go out the outside to body of the internal-combustion engine.
In the internal combustion engine of above-mentioned 1st aspect, sound-absorbing material is preferably also equipped with, above-mentioned sound-absorbing material is set on to be surrounded by all shape walls Oil sealing fixing component and chain guard between space.According to this composition, moreover it is possible to make the oil sealing fixing component surrounded by all shape walls Sound-absorbing material in space between chain guard absorbs the noise (radiation sound) that the vibration of body of the internal-combustion engine is brought.Therefore, exist In this case, in addition to using all shape walls that mechanicalness goes bad will not occur and persistently inhibit noise diffusion as time goes by Other than effect, moreover it is possible to be continuously obtained noise reducing effect using the sound-absorbing material of absorption of noise.It as a result, can be more effectively Noise caused by inhibiting the vibration of body of the internal-combustion engine (radiation sound).
In addition, in this application, in the internal combustion engine of the above-mentioned 1st aspect, it is also contemplated that following formed.
(notes area)
That is, in the internal combustion engine of the above-mentioned 1st aspect, chain guard is formed from a resin.According to this composition, even if by thermal expansion Coefficient is larger, easily due to thermal deformation and there is a situation where chain guard made of the resin of position offset is assemblied in body of the internal-combustion engine Under, also it can ensure installation site precision of the oil sealing relative to bent axle using oil sealing fixing component made of metal.In addition, even if In chain guard due to thermal deformation and in the case of position offset easily occurs, can also it utilize between chain guard and oil sealing fixing component The 1st containment member ensure the leakproofness of oil, therefore the chain guard that can be made of resin easily realizes the light weight of internal combustion engine Change.
Invention effect
According to the present invention, as described above, it can provide and oil sealing is installed by the oil sealing fixing component with chain guard independence In the case of bent axle, the internal combustion engine of leakproofness and the chain guard knot of internal combustion engine between chain guard and oil sealing fixing component are also ensured that Structure.
Description of the drawings
Fig. 1 is the stereogram of the schematic configuration for the engine for showing the 1st embodiment of the present invention.
Fig. 2 is shown in the engine of the 1st embodiment of the present invention, and retainer is being assembled on the outside of timing chain cover State side view.
Fig. 3 is (side for being equipped with engine main body) from the back side for the engine for showing the 1st embodiment of the present invention Observe the vertical view of chain guard monomer.
Fig. 4 be show the present invention the 1st embodiment engine in from the back side (side for being equipped with engine main body) Observation keeps the vertical view of the retainer of oil sealing.
Fig. 5 is the sectional view along the 110-110 lines of Fig. 2.
Fig. 6 is the sectional view along the 120-120 lines of Fig. 2.
Fig. 7 is in the engine for the variation for showing the 1st embodiment of the present invention, is assembled from the outside of timing chain cover There is the side view of the state of retainer.
Fig. 8 be show the present invention the 2nd embodiment engine in from the back side (side for being equipped with engine main body) Observation keeps the vertical view of the retainer of oil sealing.
Fig. 9 is shown in the engine of the 2nd embodiment of the present invention, and retainer is being assembled on the outside of timing chain cover In the state of oil enveloping structure sectional view.
Figure 10 is equipped with holding in the engine for show the 3rd embodiment of the present invention from inside (cylinder block side) observation group The side view of the timing chain cover of frame.
Figure 11 is shown in the engine of the 3rd embodiment of the present invention, and holding is being assembled on the outside of timing chain cover The sectional view of oil enveloping structure in the state of frame.
Figure 12 is shown in the engine of the 4th embodiment of the present invention, and holding is being assembled on the outside of timing chain cover The sectional view of oil enveloping structure in the state of frame.
Figure 13 is the stereogram of the schematic configuration for the engine for showing the 5th embodiment of the present invention.
Figure 14 is the side view for showing the engine of the 5th embodiment of the present invention from the front end side of bent axle.
Figure 15 is the vertical view for the engine chain guard monomer from outside for showing the 5th embodiment of the present invention.
Figure 16 is (to be equipped with the one of engine main body from back side in the engine for show the 5th embodiment of the present invention Side) observation keep oil sealing retainer vertical view.
Figure 17 is the sectional view along the 550-550 lines of Figure 14.
Figure 18 is (to be equipped with the one of engine main body from back side in the engine for show the 6th embodiment of the present invention Side) observation keep oil sealing retainer vertical view.
Figure 19 be show the present invention the 6th embodiment engine in, engine main body be assembled with timing chain cover and The sectional view of the state of retainer.
Figure 20 be show the present invention the 7th embodiment engine in, engine main body be assembled with timing chain cover and The sectional view of the state of retainer.
Figure 21 is the suction for illustrating between the timing chain cover and retainer in the engine of the 7th embodiment of the present invention The side view of the configuration status of sound material.
Figure 22 be show the present invention the 8th embodiment engine in, engine main body be assembled with timing chain cover and The sectional view of the state of retainer.
Figure 23 is the suction for illustrating between the timing chain cover and retainer in the engine of the 8th embodiment of the present invention The side view of the configuration status of sound material.
Reference sign
1:Cylinder head
2:Cylinder block
3:Crankcase
5:Oil sealing
6:Containment member (the 1st containment member)
7:Containment member (the 2nd containment member)
10:Engine main body (body of the internal-combustion engine)
11:Positioning pin (pin component)
20,320,420,520,620,720,820:Timing chain cover (chain guard)
27:Retainer is with lug boss (the 2nd positioning region)
27a:Embedded hole (the raised embedded hole of assembling)
28:Holding section (oil sealing fixing component holding section)
28a:Engagement pawl
40:Bent axle
50,150,250,350,550,650,750,850:Retainer (oil sealing fixing component)
52a:Through hole (bent axle inserting hole)
52c:Inner peripheral surface (inner face of bent axle inserting hole)
54:Lug boss (the 1st positioning region, assembling protrusion)
54a:Pilot hole (location hole)
55,255:Lug boss (the 1st positioning region, assembling protrusion)
55a:Pilot hole
56:Abutting part (the 1st chain guard abutting part)
100,500,600,700,800:Engine (internal combustion engine)
255b:Peripheral part
257:Abutting part (the 2nd chain guard abutting part)
Specific embodiment
Hereinafter, an embodiment of the present invention will be described based on the drawings.
(the 1st embodiment)
First, the composition of the engine 100 of the 1st embodiment of the present invention is illustrated with reference to Fig. 1~Fig. 6.In addition, in Fig. 1 In, reference numeral is marked to the main composition element for forming engine 100, in Fig. 2~Fig. 6, around timing chain cover 20 (structure) mark reference numeral is formed in detail.In addition, the extending direction of the bent axle 40 to divide into engine 100 is (front and rear as X-direction Direction), the direction orthogonal with bent axle 40 is Y-direction (left and right directions), and the extending direction of cylinder 2a comes for Z-direction (upper and lower directions) It illustrates.
As shown in Figure 1, the engine 100 of the automobile of the 1st embodiment of the present invention has including cylinder head 1, cylinder Engine main body 10 made of the aluminium alloy of body 2 and crankcase 3.In addition, the engine 100 including gasoline engine has:Resin system Into timing chain cover 20 (hereinafter referred to as TCC20), be assembled in the side ends (edge 2b) of the X2 sides of engine main body 10, and Nylon part 66 including covering timing chain 4;And skull 30 made of resin, it is assembled in the upside (Z1 sides) of cylinder head 1.This Outside, engine 100 is an example of " internal combustion engine " of the invention, and timing chain cover (TCC) 20 is the one of " chain guard " of the invention A example.
Camshaft and valve system (not shown) etc. are configured in the inside of cylinder head 1.With the lower section of cylinder head 1 (Z2 sides) The inside of the cylinder block 2 of connection is formed with the cylinder 2a (being represented by dashed line) that piston (not shown) is moved back and forth along Z-direction.Separately Outside, cylinder head 1, which is connected with, (does not scheme multiple (4) the cylinder 2a for being formed in cylinder block 2 getter devices for being directed respectively into air-breathing Show).In addition, it is configured in the inside of crankcase 3 that the lower section of cylinder block 2 (Z2 sides) is connected to rotatable by piston and connecting rod The bent axle 40 of ground connection.In addition, in Fig. 1, bent axle 40 is roughly shown as rodlike, but actually bent axle 40 is in each cylinder 2a Underface the crank-pin that rotary shaft biases with the crank journal for the counterweight for clipping the crank-pin connected and form.
In addition, in the oil storage department 3a of the lower part of crankcase 3 (Z2 sides) equipped with accumulation engine oil.Engine oil is by not shown Oil pump top in engine main body 10 is drawn into from oil storage department 3a, the sliding part in camshaft, piston outer periphery face etc. is carried out After lubrication, since dead weight is fallen back to oil storage department 3a.
It is put down as shown in Fig. 2, side sectional shapes of the TCC20 with the X2 sides with engine main body 10 (with reference to Fig. 1) is Chong Die Face shape.In addition, TCC20 has been formed about in the lower side (Z2 sides) and the central portion of Y-direction of main part 21 with through hole The lug boss 22 of 22a (with reference to Fig. 3).Through hole 22a is configured to penetrate through main part 21 on thickness direction (X-direction), is penetrating through Insert has the front end 41 of the X2 sides of bent axle 40 (with reference to Fig. 1) in the 22a of hole.In addition, TCC20 has centered on through hole 22a The a pair of end portions 23 being configured along mutually opposite direction (Y1 directions and Y2 directions).In addition, in each end 23, there is through hole The lug boss 24 of 24a is integrally formed in main part 21.Lug boss 24 at 5, through hole are respectively formed in unilateral end 23 24a penetrates through end 23 on thickness direction (X-direction).In addition, in fig. 2 it is shown that aftermentioned retainer is configured with to TCC20 The diagram of cylinder block 2 existing for (paper is inboard) behind is omitted in the appearance of vertical view when 50.In addition, Y-direction (Y1 directions and Y2 directions) be " the 2nd direction " of the invention an example.
In addition, TCC20 in Z1 sides (upside) equipped with end 25, and in Z2 sides (downside) equipped with end 26.Here, as schemed Shown in 1, flange 25a is equipped at the end 25 that is formed in a manner of being open upward by the section of main part 21, make flange 25a from Lower section is opposite with the flange 30a set on skull 30, thus connects TCC20 and skull 30 with bolt (not shown).In addition, with Flange 26a is equipped at the end 26 that the mode that the section of main part 21 is open downwards is formed, makes flange 26a from top with being set on The flange 3b of crankcase 3 is opposite, thus links connection TCC20 and crankcase 3 with bolt (not shown).
In addition, in the TCC20 from back side (side for being equipped with cylinder block 2 (with reference to Fig. 1)) is along arrow X2 directions only In the case of, as shown in figure 3, being formed with groove portion 21a respectively along a pair of end portions 23 extended in z-direction.In addition, it is configured to Aftermentioned containment member 7 is embedded with to groove portion 21a (with reference to Fig. 5).In addition, as shown in Figure 1, TCC20 is with slotting in through hole 22a The state bolt 90 for being connected with the front end 41 of the X2 sides of bent axle 40 is assemblied in the side (edge of cylinder block 2 of engine main body 10 Portion 2b).
Here, in the 1st embodiment, as shown in Figure 5 and Figure 6, bent axle 40 is corresponding with the through hole 22a of TCC20 Part is equipped with oil sealing 5.In addition, oil sealing 5 be configured to the inner peripheral surface that peripheral part is not the through hole 22a for being directly embedded into TCC20 and It is kept by TCC20, but retainer 50 is kept made of aluminium alloy.Also, retainer 50 has defined assembling structure, dress Assigned in 10 side of engine main body, thus oil sealing 5 is installed near the TCC20 of bent axle 40.In addition, it is configured to utilize oil sealing 5 Make the oil in crankcase 3 (with reference to Fig. 1) that the outside of engine main body 10 (with reference to Fig. 1) will not be escaped to around bent axle 40.This Outside, retainer 50 is an example of " oil sealing fixing component " of the invention.
The retainer 50 for keeping oil sealing 5 is assembled to the assembling structure of 10 side of engine main body by following detailed description.
As shown in Figure 1 and Figure 4, retainer 50 is formed in the central portion of main part 51 extended along Y-direction with perforation The lug boss 52 of hole 52a.Through hole 52a is configured to penetrate through main part 51 on thickness direction (X-direction), in through hole 52a Insert has the front end 41 of bent axle 40 (with reference to Fig. 1).In addition, as shown in figure 5, cross section structure as retainer 50, in protrusion The inner peripheral surface of the through hole 52a in portion 52 is formed with the prominent circular baffle portion in the direction to become smaller along the Y direction to internal diameter 52b.In addition, oil sealing 5 is from outside (X2 sides), (X1 sides) is pressed into through hole 52a and fixation inwardly.In addition, press-in oil sealing 5 by Baffle portion 52b prevents from excessively shaking in cylinder block 2.
In addition, in the situation of (the inner surface 50b sides with outer surface 50a opposite sides) from the back side observation retainer 50 Under, prolonged centered on through hole 52a along mutual opposite direction (Y1 directions and Y2 directions) as shown in figure 4, retainer 50 has A pair of end portions 53 that the top of the arm 51a stretched is formed.Have in addition, being mutually adjacent to be equipped in z-direction in each end 53 The lug boss 54 of pilot hole 54a including smooth inner peripheral surface and the lug boss 55 with the pilot hole 55a for including smooth inner peripheral surface. In this case, in the end of Y1 sides 53 and the end 53 of Y2 sides, the arrangement of lug boss 54 and lug boss 55 along the Z direction is suitable Sequence has mutually opposite relationship.In addition, pilot hole 54a and pilot hole 55a penetrates through main part on thickness direction (X-direction) 51.In addition, lug boss 54 and lug boss 55 are integrally formed in main part 51.In addition, lug boss 54 is invention " the 1st positioning Portion " and an example of " assembling protrusion ".In addition, pilot hole 54a is an example of " location hole " of the invention.
Therefore, as shown in Figure 1, in engine 100, it is configured to:In the front along engine main body 10 (cylinder block 2) In a state that the edge 2b of side (X2 sides) is equipped with TCC20 using bolt 90 along X1 directions, retainer 50 in the Y direction across with The mode of the outer surface 20a of the part of 40 corresponding TCC20 of bent axle protruded outward from through hole 22a, from nearby side edge X1 directions are assembled.
In addition, as shown in figure 5, the part of the edge 2b in the 53 corresponding cylinder block 2 of end with retainer 50, with one The part mode prominent to X2 directions is fixed with positioning pin 11.Positioning pin 11 including Ferrious material material presses defined depth quilt Press-in is respectively arranged on the mounting hole 2c of the edge 2b of edge 2b and the Y2 side of the Y1 sides of cylinder block 2.In addition, the outer diameter of positioning pin 11 Internal diameter than the pilot hole 54a of the lug boss 54 of retainer 50 is slightly smaller.As a result, retainer 50 from the outer side covering of TCC20 to In the state of on outer surface 20a, the pilot hole 54a of the end 53 of Y1 sides is embedded in positioning pin 11 corresponding with Y1 sides, also, The pilot hole 54a of the end 53 of Y2 sides is embedded in positioning pin 11 corresponding with Y2 sides.Also, it is configured to:In this state, it is a pair of Insert has bolt 90 respectively in the pilot hole 55a of lug boss 55, and the lower surface of lug boss 55 is directly fixed on the edge of cylinder block 2 The mounting hole 2d of 2b (with reference to Fig. 6).Here, pilot hole 54a is through hole, but in positioning pin 11 from the lower face side of end 53 From the point of view of chimeric this point, pilot hole 54a can also be the concave hole for the upper surface for not penetrating into end 53.In addition, positioning pin 11 be an example of " pin component " of the invention.
It is configured to as a result,:By in the Y direction across TCC20 in a manner of retainer 50 is assembled into cylinder block 2 when, protected Hold positioning of the frame 50 relative to cylinder block 2 in fitting surface (in Y-Z plane).In addition, pass through positioning pin 11 and pilot hole 54a It is fitted into and retainer made of metal 50 is accurately assembled into cylinder block 2 made of metal, it thus will be in through hole 52a The heart is accurately aligned relative to the axle center of bent axle 40.In addition, oil sealing 5 is accurately pressed into bent axle 40 as a result,.
Here, in the 1st embodiment, as shown in Figure 5 and Figure 6, TCC20 is convex the outer surface 20a's as X2 sides It rises and circular groove portion 21b is formed with around portion 22.Also, the annular shape for including flexible material is embedded in groove portion 21b Containment member 6.Also, containment member 6 from groove portion 21b by being exposed to being partially exposed on outer surface 20a and TCC20 Inner surface 50b around the lug boss 52 of opposite retainer 50.That is, in retainer 50 (lug boss 52) and TCC20 (protrusions Portion 22) between be configured with containment member 6, containment member 6 is the state compressed to X1 directions, in the close of TCC20 (lug boss 22) It is tightly attached to the part of corresponding outer surface 20a and the inner surface 50b of retainer 50 (lug boss 52) near envelope component 6. In addition, containment member 6 is an example of " the 1st containment member " of the invention.
In addition, in the 1st embodiment, in the groove portion 21a of the inner surface 20b for the X1 sides for being formed in TCC20, it is embedded with Containment member 7 including flexible material.Also, containment member 7 from groove portion 21a by being exposed on inner surface 20b It is partially exposed to the edge 2b opposite with TCC20 of cylinder block 2.That is, in cylinder block 2 (edge 2b) and TCC20 (inner surfaces Containment member 7 is configured between 20b), containment member 7 is the state compressed to X1 directions, be tightly attached to cylinder block 2 edge 2b and The inner surface 20b of TCC20.In addition, TCC20 between cylinder block 2 across containment member 7 to have as minimum range Gap L 1 and suspend state fixed.In addition, containment member 7 is an example of " the 2nd containment member " of the invention.Separately Outside, gap L 1 is an example in " the 1st gap " of the invention.
Therefore, in the interior from engine main body 10 along in the case of from arrow X2 directions, in cylinder block 2 Edge 2b is equipped with TCC20 across containment member 7 in cylinder block 2, in the side (X2 side) opposite with engine main body 10 It is arranged as opposed to the lug boss 52 of retainer 50 around the lug boss 22 of TCC20 on TCC20 across containment member 6.
In addition, in the 1st embodiment, as shown in figure 4, ratio lug boss 54 and lug boss in the end of retainer 50 53 The part of 55 main part 51 in the inner part, equipped with there is defined projecting height on X1 directions (paper nearby side) and protrusion Abutting part 56.In addition, abutting part 56 is covered the end of Z2 sides from the end of the Z1 sides of main part 51 and is formed continuously.As a result, such as Shown in Fig. 5 and Fig. 6, the part with corresponding outer surface 20a near the containment member 6 of TCC20 is with relative to retainer 50 The mode that inner surface 50b has the gap L 2 as minimum range is configured, and in this state, is configured to the abutting of retainer 50 Portion 56 is connected to outer surface 20a near containment member 7 and from the side opposite with the side equipped with containment member 7. In addition, pre-adjust abutting part 56 projecting height, so as to maintain TCC20 relative to retainer 50 near containment member 6 The state that the part of corresponding inner surface 50b has gap L 2 (minimum range) and is configured.In addition, abutting part 56 is the present invention " the 1st chain guard abutting part " an example.In addition, X1 directions are an examples in " the 1st direction " of the invention.
In addition, the height dimension (X-direction) under natural conditions of containment member 7 is more than containment member 6 under natural conditions Height dimension (X-direction).Also, in the 1st embodiment, it is configured to:Cylinder block is assembled in TCC20 and retainer 50 In the state of 2, containment member 7 is right more than containment member 6 to the reaction force F1 (power acted on along arrow X2 directions) of TCC20 The reaction force F2 (power acted on along arrow X1 directions) of TCC20.It is configured to reaction force F2 as a result, to have an effect, seals structure Part 7 will not keep containment member 7 to have the state of appropriate deflation amount to the X1 directions of 1 reduction of gap L is made excessively to compress.
In addition, in the 1st embodiment, as shown in figure 5, the lug boss 54 of retainer 50 has peripheral part 54b.Peripheral part 54b has side with rounded corners in the side opposite with abutting part 56, on the other hand, when looking down opposite with abutting part 56 one Side has linearly extended side end face 54c along the Z direction.Retainer 50 is configured to as a result,:The side end face 54c of peripheral part 54b exists The side end face 23a of the end 23 of TCC20 is connected in Y-direction, thus carries out TCC20 in the Y direction on (Y1 directions and Y2 directions) Relative to the positioning of retainer 50.In addition, as shown in fig. 6, the circle-shaped peripheral part 55b of lug boss 55 is not connected to TCC20 Side end face 23a.
In addition, as shown in Figure 1, in the inside of TCC20, it is assemblied in the crankshaft timing gear (not shown) of bent axle 40 and is packed into The camshaft timing gear 31 of camshaft (not shown) driving of the inside of cylinder head 1 is coupled by timing chain 4.In addition, The outside of TCC20 has been rotatably mounted crank pulley (not shown) in the front end 41 of bent axle 40.Also, it is assemblied in and starts The subsidiary engines classes such as the water pump of the cooling water circulation of machine 100, the compressor of car idle call are by carry in the transmission belt of crank pulley Driving.In addition, the rear end 42 of bent axle 40 is connected with the power transfering part (not shown) including speed changer etc..1st embodiment The TCC20 for including engine 100 and retainer 50 around structure form as described above.
In the 1st embodiment, following effect can be obtained.
That is, in the 1st embodiment, as described above, have:It is assemblied in the TCC20 of engine main body 10;And aluminium closes Retainer 50 made of gold, configuration is in the side opposite with engine main body 10 of TCC20, for fixing oil sealing 5, with configuration Mode between retainer 50 and TCC20 is equipped with containment member 6, and TCC20 thus is assemblied in engine main body 10 and is incited somebody to action Retainer 50 is configured on the outer surface 20a of TCC20, in the structure of above-mentioned TCC20, set on TCC20 and retainer 50 it Between containment member 6 be the state compressed on X1 directions, the outside that containment member 6 can be made to be tightly attached to mutually opposite TCC20 The inner surface 50b of surface 20a and retainer 50.It can be kept around the bent axle 40 equipped with oil sealing 5 to engine main body as a result, The leakproofness of oil in 10 (crankcases 3), and oily slave phase mutual respect can be avoided using sealing function possessed by containment member 6 Folded TCC20 and the gap of retainer 50 escape to the outside of engine main body 10.As a result, by independent with TCC20 Retainer 50 oil sealing 5 is installed on bent axle 40 in the case of, also ensure that the leakproofness between TCC20 and retainer 50.
In addition, in the 1st embodiment, other than the containment member 6 between retainer 50 and TCC20 is configured, also Have containment member 7 of the configuration between TCC20 and engine main body 10.As a result, in addition to that can utilize possessed by containment member 6 Sealing function avoids oil from being escaped to other than outside from the gap of TCC20 and retainer 50, moreover it is possible to using possessed by containment member 7 Sealing function equally avoids oil from the outside that engine main body 10 is escaped between engine main body 10 and TCC20.As a result, The leakproofness of engine 100 can further be maintained.
In addition, in the 1st embodiment, it is equipped in retainer 50 and supporting for TCC20 is connected near containment member 7 Socket part 56.Also, in the state of utilizing containment member 7 between TCC20 and engine main body 10 at least provided with gap L 1, edge The mode that TCC20 is connected to from the X1 directions of 50 lateral TCC20 of retainer forms abutting part 56.Retainer 50 is utilized as a result, Abutting part 56 inhibits the part of TCC20 corresponding with region near containment member 7 excessively floating to the X2 directions for increasing gap L 1 The state risen under this state, can be configured in which be spaced apart appropriate gap L1 using containment member 7 with engine main body 10 TCC20.Therefore, TCC20 can be reliably carried out near containment member 7 in short transverse (X1 directions) relative to mobilizing owner The positioning of body 10, also, the TCC20 that can inhibit to separate the configuration of gap L 1 is due to unexpected external force, the vibration of engine main body 10 Caused by shaking.
In addition, in the 1st embodiment, it is configured to be assembled in the shape of engine main body 10 in TCC20 and retainer 50 Under state, containment member 7 is more than reaction force F2 of the containment member 6 to TCC20 to the reaction force F1 of TCC20.As a result, due to close Reaction force F2 of the component 6 to TCC20 is sealed, can prevent containment member 7 from excessively being compressed to the X1 directions for reducing gap L 1.That is, energy It keeps containment member 7 that there is the state of appropriate deflation amount, containment member 7 can be made persistently to play sealing function, therefore can utilize close Sealing function possessed by envelope component 7 reliably avoids oil from escaping to outside from the gap of engine main body 10 and TCC20.Separately Outside, excessive deformation will not be applied to containment member 7, therefore containment member 7 can be inhibited to deteriorate and deteriorate durability.
In addition, in the 1st embodiment, in engine main body 10 in a manner of prominent to 50 side of retainer (X2 directions) (the edge 2b of cylinder block 2) is equipped with positioning pin 11.Also, in retainer 50 be equipped with for by it is chimeric with positioning pin 11 come into Row retainer 50 relative to the positioning of engine main body 10 (cylinder block 2) pilot hole 54a.It as a result, can be by being set on metal Manufactured retainer 50 pilot hole 54a insert (chimeric) engine main body 10 positioning pin 11 come improve retainer 50 relative to The fixed position precision of engine main body 10.As a result, oil sealing 5 can be maintained relative to the installation site precision of bent axle 40 It is high.
In addition, in the 1st embodiment, lug boss 54 is equipped in retainer 50, in the X-direction extended with bent axle 40 just The Y1 directions of friendship and Y2 directions, the side end face 54c of the peripheral part 54b of lug boss 54 are connected to the side end face of the end 23 of TCC20 Thus 23a carries out positioning of the TCC20 relative to retainer 50 in the Y direction.The lug boss 54 of retainer 50 can be utilized as a result, (peripheral part 54b) suitably maintains TCC20 relative to the assembling position on retainer 50 in the Y direction (direction orthogonal with bent axle 40) It puts.Therefore, the relative position in Y-Z plane across containment member 6 mutually opposite retainer 50 and TCC20 can suitably be maintained Relationship.In addition, it is inclined that the vibration by unexpected external force, engine main body 10 can be inhibited to cause TCC20 that position occurs in the Y direction It moves.In addition, the peripheral part 54b of the lug boss 54 set on retainer 50 can be utilized easily to play TCC20 relative to retainer 50 Positioning function in the Y direction.
In addition, in the 1st embodiment, TCC20 is formed using resin material (nylon part 66).Even it is inciting somebody to action as a result, Coefficient of thermal expansion is larger and easily since thermal deformation causes TCC20 made of the resin of position offset to be assemblied in engine main body 10 In the case of, can also retainer 50 made of metal be utilized to ensure installation site precision of the oil sealing 5 relative to bent axle 40.In addition, Can be utilized even if TCC20 easily occurs due to thermal deformation in the case of position offset between TCC20 and retainer 50 it Between containment member 6 ensure the leakproofness of oil, therefore the TCC20 that can be easily made of resin seeks the light of engine 100 Quantization.
(variation of the 1st embodiment)
Next, illustrate the variation of the 1st embodiment with reference to Fig. 1 and Fig. 7.In the variation of the 1st embodiment, Illustrate to be further added by form the example of retainer 150 to the fixed position (lug boss 55) of cylinder block 2 at 1.In addition, in the figure It similarly forms pair with above first embodiment and marks the reference numeral identical with the 1st embodiment to illustrate.
That is, as shown in fig. 7, keep the retainer 150 of oil sealing 5 convex with 1 lug boss 55 and 1 in the end of Y1 sides 53 Portion 54 is played, on the other hand there is 2 lug bosses 55 and 1 lug boss 54 in the end of Y2 sides 153.In addition, in end 153, The lug boss 54 with pilot hole 54a is configured between 2 lug bosses 55 in z-direction.In addition, it is configured to the end of Y1 sides The straight line 160 (chain-dotted line) that the lug boss 54 in portion 153 and the connection of the lug boss 54 of the end 153 of Y2 sides obtain passes through bent axle 40 Axle center.It is configured to the side end face 54c of the lug boss 54 of side end face 54c and the Y2 side of the lug boss 54 of Y1 sides as a result, along passing through The straight line 160 in the axle center of bent axle 40 clamps the side end face 23a of TCC20 from mutually opposite direction.In this way, in the 1st embodiment Variation in, be configured to that retainer 150 is assemblied in cylinder block 2 with 3 bolts 90.
In addition, in the chain cover structure of the variation of the 1st embodiment, in addition to the shape of retainer 150 and the above-mentioned 1st in fact Other than retainer 50 (with reference to Fig. 1) the difference this point for applying mode, similarly formed with above first embodiment.
In the variation of the 1st embodiment, as described above, retainer 150 is assemblied in cylinder block with 3 bolts 90 2 edge 2b, thus, it is possible to which retainer 150 is firmly fixed to engine main body 10, therefore it is opposite to further improve oil sealing 5 In the installation site precision of bent axle 40.
In addition, in the variation of the 1st embodiment, by the lug boss 54 (pilot hole 54a) of the end 153 of Y1 sides and The straight line 160 that the lug boss 54 (pilot hole 54a) of the end 153 of Y2 sides links is formed by way of the axle center of bent axle 40 Retainer 150.When the side end face 54c of the Y1 sides of retainer 150 can be made to be connected to the side end face 23a of TCC20 along Y2 directions as a result, Power position and retainer 150 Y2 sides side end face 54c in the side end face 23a that TCC20 is connected on Y1 directions The position of power is uniformly on straight line 160, therefore can not make TCC20 shifting grounds retainer 150 made of resin in the Y direction On reliably clamp TCC20.In addition, other effects of the variation of the 1st embodiment are similary with above first embodiment.
(the 2nd embodiment)
Next, illustrate the 2nd embodiment with reference to Fig. 6, Fig. 8 and Fig. 9.In the 2nd embodiment, illustrate with it is above-mentioned In the case that the shape of the retainer 50 (with reference to Fig. 6) of 1st embodiment is compared, in order to further improve timing chain cover (TCC) 20 positioning accuracy and change the example of the concrete shape of retainer 250.In addition, in figure, pair with above-mentioned 1st embodiment party Formula, which is similarly formed, marks the reference numeral identical with the 1st embodiment to be illustrated.
As shown in Figure 8 and Figure 9, in the engine of the 2nd embodiment of the present invention, it is configured to be kept with retainer 250 Oil sealing 5.In the case where observing retainer 250 from the back side, as shown in figure 8, lug boss 255 has peripheral part 255b.It is in addition, outer Circumference 255b has side with rounded corners in the side opposite with abutting part 56, on the other hand opposite with abutting part 56 when looking down Side there is linearly extended side end face 255c along the Z direction.Retainer 250 is configured to the side end face of peripheral part 54b as a result, 54c is connected to the side end face 23a (with reference to Fig. 9) of the end 23 of TCC20, while the side end face of peripheral part 255b in the Y direction 255c is connected to the side end face 23a (with reference to Fig. 9) of the end 23 of TCC20 in the Y direction, thus carries out TCC20 relative to holding The positioning on (Y1 directions and Y2 directions) in the Y direction of frame 250.In addition, lug boss 255 is " the 1st positioning region " of the invention and " dress With protrusion " example.
In addition, in the 2nd embodiment, it is equipped in the opening portion of the X1 sides of the lug boss 52 of retainer 250 to X1 directions (paper of Fig. 8 nearby side) has the abutting part 257 of defined projecting height and protrusion.In addition, abutting part 257 is in main part 51 Lug boss 52 around be formed as circular.Relative to the inner surface 650b of retainer 250 there is 2 ground of gap L to match as a result, It is equipped in the state of TCC20, the abutting part 257 of retainer 250 is configured to edge to be supported from the X1 directions of 250 lateral TCC20 of retainer It is connected to the part of outer surface 20a corresponding near the containment member of TCC20 6.In addition, pre-adjust abutting part 257 Projecting height, to maintain that TCC20 has that 2 ground of gap L is configured at retainer 250 and corresponding inside near containment member 6 The state of the part of surface 650b.In addition, abutting part 257 is an example of " the 2nd chain guard abutting part " of the invention.In addition, Gap L 2 is an example in " the 2nd gap " of the invention.
TCC20 is also maintained using abutting part 257 relative to retainer other than the abutting part 56 of retainer 250 as a result, 250 have the state of gap L 2 (with reference to Fig. 9).In addition, other compositions of the engine of the 2nd embodiment are implemented with the above-mentioned 1st Mode is similary.
In the 2nd embodiment, following effect can be obtained.
That is, in the 2nd embodiment, on the orthogonal Y1 directions and Y2 directions of the X-direction extended with bent axle 40, peripheral part The side end face 255c of 255b is connected to the side end face 23a of the end 23 of TCC20, thus will carry out TCC20 relative to retainer 250 The lug boss 255 of positioning in the Y direction is set on retainer 250.255 (the peripheral part of lug boss of retainer 250 can be utilized as a result, 255b) suitably maintain rigging positions of the TCC20 relative to retainer 250 in the Y direction.Therefore, it can suitably maintain across sealing The relative position relation of component 6 mutually opposite retainer 250 and TCC20 in Y-Z plane.At this point, not merely with set on guarantor The peripheral part 54b (side end face 54c) of the lug boss 54 of frame 250 is held, also utilizes the periphery of the lug boss 255 set on retainer 250 Portion 255b (side end face 255c) can easily realize the positioning functions of TCC20 relative to retainer 250 in the Y direction.Moreover, Can by peripheral part 255b (side end face 255c) as carry out positioning of the TCC20 relative to retainer 250 in the Y direction " the 1st is fixed Position portion ", therefore do not need to set dedicated 1st positioning region, it can correspondingly simplify the composition of retainer 250.
In addition, in the 2nd embodiment, the abutting part 257 that TCC20 is connected near containment member 6 is set on and is protected Hold frame 250.Also, in the state of utilizing containment member 6 between retainer 250 and TCC20 at least provided with gap L 2, with edge The mode that TCC20 is connected to from the X1 directions of 250 lateral TCC20 of retainer forms abutting part 257.Retainer can be utilized as a result, Gap L 2 between TCC20 and retainer 250 is remained fixed intervals, therefore can guarantee and be set on by 250 abutting part 257 Containment member 6 between TCC20 and retainer 250 is the state with appropriate deflation amount.Therefore, TCC20 can steadily be maintained Leakproofness between retainer 250.In addition, other effects of the 2nd embodiment are similary with above first embodiment.
(the 3rd embodiment)
Next, illustrate the 3rd embodiment with reference to Fig. 2, Figure 10 and Figure 11.In the 3rd embodiment, with the above-mentioned 1st The TCC20 used in embodiment is different (with reference to Fig. 2), and illustrating will be with the lug boss 55 that can be inserted into and be fitted into retainer 350 Embedded hole 27a retainer with lug boss 27 be set on timing chain cover (TCC) 320 example.In addition, lug boss 55 is the present invention " the 1st positioning region " and " assembling protrusion " an example.In addition, retainer lug boss 27 and embedded hole 27a are this respectively " the 2nd positioning region " of an invention and example of " the raised embedded hole of assembling ".It is pair same with above first embodiment in addition, in figure The composition of sample marks the reference numeral identical with the 1st embodiment to be illustrated.
The present invention the 3rd embodiment engine in, as shown in Figure 10 and Figure 11, be configured to retainer 350 come Keep oil sealing 5 (with reference to Figure 11).
Here, in the 3rd embodiment, TCC320 is equipped with the lug boss 55 that can be inserted into and be fitted into retainer 350 The retainer of embedded hole 27a lug boss 27.Also, it is configured to:Utilize the lug boss of the pilot hole 55a including retainer 350 The retainer of the 55 and embedded hole 27a including TCC320 with lug boss 27 come carry out TCC320 and retainer 350 with X-direction just Positioning on the direction of friendship.That is, in a state that retainer 350 is assemblied in cylinder block 2, there is round for lug boss 55 Peripheral part 55b, its inner face of retainer lug boss 27 for being appropriately embedded in TCC320 of outside is made to be formed as circle-shaped embedding Hole 27a is closed, thus carries out the positioning of TCC320 and retainer 350 on the direction orthogonal with X-direction.
In addition, as shown in Figure 10, also with the part in peripheral part 54b with side end face 54c's in retainer 350 Lug boss 54.TCC320 passes through the abutting and embedded hole 27a of side end face 23a and side end face 54c and peripheral part 55b as a result, The chimeric positioning carried out relative to retainer 350 on the direction orthogonal with X-direction.
In addition, in the 3rd embodiment, as shown in figure 11, in the opening portion of the X1 sides of the lug boss 52 of retainer 350 Equipped with circular abutting part 257.It is configured to as a result,:Between TCC20 has relative to the inner surface 350b of retainer 350 In the state of being configured to gap L2, the abutting part 257 of retainer 350 is connected to along from the X1 directions of 350 lateral TCC320 of retainer The part with corresponding outer surface 20a near containment member 6 of TCC320.In addition, the engine of the 3rd embodiment is other It forms similary with above-mentioned 2nd embodiment.
In the 3rd embodiment, following effect can be obtained.
That is, in the 3rd embodiment, as described above, will include being inserted into and being fitted into lug boss 55 (peripheral part 55b) The retainer of embedded hole 27a is set on TCC320 with lug boss 27.Also, it is configured to utilize the peripheral part 55b for including retainer 350 Lug boss 55 and the retainer of embedded hole 27a including TCC320 carry out TCC320 relative to retainer with lug boss 27 350 positioning on the direction orthogonal with X-direction.As a result, only by peripheral part 55b weeks for the lug boss 55 for making retainer 350 The embedded hole 27a for being embedded in shape TCC320 is easy to carry out TCC320 relative to retainer 350 orthogonal with X-direction Positioning on direction.In addition, 27a weeks shape of the embedded hole of retainer lug boss 27 be embedded in the peripheral part 55b of lug boss 55, Therefore positioning accuracies of the TCC320 in the Y-Z plane orthogonal with bent axle 40 relative to retainer 350 can be improved.In addition, the 3rd is real The other effects for applying mode are similary with above-mentioned 2nd embodiment.
(the 4th embodiment)
Next, illustrate the 4th embodiment with reference to Fig. 2 and Figure 12.In the 4th embodiment, illustrate to the above-mentioned 1st Further setting is sticked in the holding section 28 of retainer 50 to form timing chain to the TCC20 (with reference to Fig. 2) used in embodiment Cover the example of (TCC) 420.In addition, holding section 28 is an example of " oil sealing fixing component holding section " of the invention.In addition, In figure, similarly form pair with above first embodiment and mark the reference numeral identical with the 1st embodiment to illustrate.
In the engine of the 4th embodiment of the present invention, as shown in figure 12, it is configured to keep oil sealing with retainer 50 5。
Here, in the 4th embodiment, in TCC420, holding section 28, above-mentioned card are equipped near containment member 6 The conduct of with TCC420 opposite side (X2 side) of the conjunction portion 28 with being located at retainer 50 across the through hole 52a of retainer 50 is passed through The baffle portion 52b engagings of a part of through-hole 52a.That is, it is configured to:Holding section 28 has the 22 (through hole of lug boss of TCC420 The engagement pawl 28a of (Y1 sides and Y2 sides) on the outside of radial direction is gone back to after the interior extension towards X2 directions 22a), engagement pawl 28a's Lower surface (face of X1 sides) is connected to baffle portion 52b (face contact) from the lateral X1 sides of X2, thus by TCC420 keep (fixation) in The inner surface 50b sides of retainer 50.In addition, holding section 28 and engagement pawl 28a are formed as circular around through hole 22a. In addition, the length of holding section 28 in the X direction is pre-adjusted, to maintain inner surface 50bs of the TCC420 relative to retainer 50 State with the configuration of 2 ground of gap L.In addition, through hole 52a is an example of " bent axle inserting hole " of the invention.
In addition, in the 4th embodiment, it is configured to:Holding section 28 is also connected to the through hole 52a (baffles of retainer 50 Portion 52b) inner peripheral surface 52c, thus also play the TCC420 on the direction orthogonal with the X-direction that bent axle 40 extends relative to holding The function of the positioning region of frame 50.In addition, inner peripheral surface 52c is an example of " inner face of bent axle inserting hole " of the invention.In addition, Other compositions of the engine of 4th embodiment are similary with above first embodiment.
In the 4th embodiment, following effect can be obtained.
That is, in the 4th embodiment, as described above, near containment member 6, it is equipped in TCC420 across holding The through hole 52a of frame 50 is sticked in the holding section 28 of the side (X2 side) opposite with TCC420 of retainer 50.Also, it is configured to Using containment member 6 between retainer 50 and TCC420 be equipped with gap L 2 in the state of, along from retainer 50 with The X1 directions of a lateral retainer 50 opposite TCC420 are connected to the mode of retainer 50 to form holding section 28.Exist as a result, Using holding section 28 by TCC420 in a state that X1 direction sides (10 side of engine main body) are configured at retainer 50, can will Gap L 2 between TCC420 and retainer 50 remains fixed intervals, therefore can will be between TCC420 and retainer 50 Containment member 6 remains the state with appropriate deflation amount.Therefore, it can steadily remain between TCC420 and retainer 50 close Feng Xing.In addition, TCC420 can be easily held in X1 direction sides (2 side of cylinder block), therefore can be easily using holding section 28 Inhibit the TCC420 being configured across gap L 2 due to unexpected external force, engine main body 10 vibration and be detached from from retainer 50.
In addition, in the 4th embodiment, it is configured to the inner circumferential that holding section 28 is also connected to the through hole 52a of retainer 50 Thus face 52c also plays positioning regions of the TCC420 on the direction orthogonal with the X-direction that bent axle 40 extends relative to retainer 50 Function.As a result, TCC420 and retainer 50 can be suitably maintained in the side orthogonal with bent axle 40 using the holding section 28 of TCC420 Upward relative position relation.Therefore, the phase across the mutually opposite TCC420 of containment member 6 and retainer 50 can suitably be maintained To position relationship.In addition, the vibration due to unexpected external force, engine main body 10 can be inhibited to lead to TCC420 in Y-Z plane Position offset occurs.In addition, other effects of the 4th embodiment are similary with above first embodiment.
(the 5th embodiment)
First, the 5th embodiment of the present invention is illustrated with reference to Figure 13~Figure 17.In the 5th embodiment, illustrate with In the case that above first embodiment is compared, in order to chronically maintain to inhibit as caused by the vibration of 500 main body of engine The effect of noise (radiation sound) and the example for changing the concrete shape of TCC520 and retainer 550.In addition, in figure, pair with it is upper It states the 1st embodiment and similarly forms the mark reference numeral identical with the 1st embodiment to be illustrated.
As shown in figure 13, the engine 500 of the automobile of the 5th embodiment of the invention has including made of aluminium alloy The engine main body 10 of cylinder head 1, cylinder block 2 and crankcase 3.In addition, the engine 500 including gasoline engine has:Resin system Into TCC520, be assembled in the side end (edge 2b) of the X2 sides of engine main body 10 and cover timing chain 4;And head Lid 30 is assembled in the upside (Z1 sides) of cylinder head 1.In addition, engine main body 10 is the one of " body of the internal-combustion engine " of the invention A example.In addition, timing chain cover (TCC) 520 is an example of " chain guard " of the invention.
The camshaft 45 (being represented by dashed line) and valve system for forming valve timing component are configured in the inside of cylinder head 1 (not diagram in detail) etc..Piston 12, which is formed with, in the inside of cylinder block 2 that the lower section of cylinder head 1 (Z2 sides) is connected (uses dotted line Represent) the cylinder 2a (being represented by dashed line) that moves back and forth in z-direction.In addition, cylinder head 1 is connected to the shape in cylinder block 2 Into multiple (4) cylinder 2a be directed respectively into the getter device (not shown) of air-breathing.
In addition, by cylinder block 2 and the crankcase 3 being connect with the lower section (Z2 sides) of cylinder block 2, in engine main body 10 Interior bottom is formed with crank chamber 3c.In crank chamber 3c, it is configured with and is rotatably attached by piston 12 and connecting rod (not shown) Bent axle 40.In addition, it is rodlike by 40 schematic diagram of bent axle, but actually bent axle 40 is in each cylinder 2a in fig. 13 The crank-pin that underface biases rotary shaft is connected to crank journal and forms with the counterweight for clipping the crank-pin.
In addition, in the oil storage department 3a of the lower part of crank chamber 3c (Z2 sides) equipped with accumulation engine oil (being only called oil later). Oil is drawn into the top in engine main body 10 by oil pump (not shown) from oil storage department 3a, is supplied to the gas for including camshaft 45 The sliding parts such as peripheral surface of door timing component, piston 12.Also, it then, is fallen and (dripped) due to dead weight and return to oil storage department 3a.
As shown in figure 14, TCC520 has Chong Die with the side sectional shape of the X2 sides of engine main body 10 (with reference to Figure 13) Flat shape.In addition, TCC520 has to the paper main part 21 that nearby side (arrow X2 directions) is heaved, under main part 21 Portion side (Z2 sides) and central portion in the Y direction are formed about the lug boss 22 with through hole 22a (with reference to Figure 15).Through hole 22a is configured to penetrate through main part 21 in a thickness direction, so as to insert the front end 40a (references of bent axle 40 in through hole 22a Figure 13).
In addition, TCC520 has is configured at mutual opposite direction (arrow Y1 directions and arrow Y2 centered on through hole 22a Direction) a pair of end portions 23.In addition, it is formed with being formed as flange shape each end 23 with passing through of penetrating through in a thickness direction The lug boss 24 of through-hole 24a.In addition, the in fig. 14 it is shown that sample overlooked when aftermentioned retainer 550 is configured to TCC520 The diagram of cylinder block 2 existing for (paper is inboard) behind is omitted in son.
In addition, as shown in figure 15, in TCC520, in the end 23 for being assemblied in cylinder head 1 and cylinder block 2 (with reference to Figure 13) Back side (sealing surface side) be formed with groove portion 21a.It is configured to groove portion 21a locating to prolong in z-direction in the inner part than through hole 22a It stretches, aftermentioned containment member 7 is embedded in groove portion 21a (with reference to Figure 17).In addition, as shown in figure 13, TCC520 is in through hole Insert is assemblied in the side (gas of engine main body 10 with bolt 90 in the state of having the front end 40a of the X2 sides of bent axle 40 in 22a The edge 2b of cylinder head 1 and cylinder block 2).
Here, as shown in figure 17, bent axle 40 is equipped with oil sealing 5 in part corresponding with the through hole 22a of TCC520.Separately Outside, the peripheral part of oil sealing 5 be not the through hole 22a for being directly embedded into TCC520 inner peripheral surface so as to being kept by TCC520, but by Retainer 550 is kept made of aluminium alloy.Also, it is configured to retainer 550 with defined assembling structure, is assemblied in engine 10 side of main body, thus oil sealing 5 be installed near the TCC520 of bent axle 40.In addition, it is configured to using oil sealing 5 so that crankcase Oil in 3 (with reference to Figure 13) will not escape to the outside of engine main body 10 (with reference to Figure 13) near bent axle 40.In addition, it keeps Frame 550 is an example of " oil sealing fixing component " of the invention.
As shown in Figure 13 and Figure 16, retainer 550 is formed in the central portion of the X-direction along main part 51 with perforation The lug boss 52 of hole 52a.Through hole 52a is configured to penetrate through main part 51 in a thickness direction, and bent axle is inserted in through hole 52a 40 front end 40a (with reference to Figure 13).In addition, the cross section structure as retainer 550, as shown in figure 17, in lug boss 52 The inner peripheral surface of through hole 52a is formed with the circular baffle portion 52b protruded in a manner that internal diameter along the Y direction becomes smaller.In addition, To through hole 52a, from outside (X2 sides), (X1 sides) press-in is fixed with oil sealing 5 inwardly.In addition, the oil sealing 5 of press-in is by baffle portion 52b prevents from excessively shaking to 2 side of cylinder block (X1 sides).
In addition, in the case of observing retainer 550 in (inner surface 50b sides) from the back side, as shown in figure 16, retainer 550 have a pair of end portions 53.End 53 is formed in centered on through hole 52a mutually to long side direction (Y1 directions and Y2 directions) The top of the arm 51a of extension.In addition, in each end 53, mutually it is adjacent in z-direction equipped with embedding with aftermentioned positioning pin 11 The lug boss 55 of the pilot hole 54a of conjunction and the pilot hole 55a inserted for aftermentioned bolt 90.In this case, at the end of Y1 sides Portion 53 is equipped with 1 pilot hole 54a and 1 lug boss 55 (pilot hole 55a), be equipped in the end of Y2 sides 53 1 pilot hole 54a and A pair of of lug boss 55 (pilot hole 55a) of pilot hole 54a is clipped from upper and lower (Z-direction).In addition, pilot hole 54a and pilot hole 55a End 53 is penetrated through in a thickness direction.In addition, inner surface 50b is an example of " opposite face " of the invention.
In addition, as shown in figure 17, the 53 corresponding cylinder block 2 of end with retainer 550 edge 2b part with one The part mode prominent to arrow X2 directions is fixed with positioning pin 11.Positioning pin 11 made of metal is by the press-in point of defined depth Not She Yu cylinder block 2 Y1 sides edge 2b and Y2 side edge 2bD mounting hole 2c.In addition, the outer diameter of positioning pin 11 is than protecting The internal diameter for holding the pilot hole 54a of frame 550 is slightly smaller.As a result, in retainer 550 from the outer side covering of TCC520 in outer surface 20a In the state of upper, the pilot hole 54a of the end 53 of Y1 sides is embedded in positioning pin 11 (with reference to Figure 13) corresponding with Y1 sides, also, The pilot hole 54a of the end 53 of Y2 sides is embedded in positioning pin 11 corresponding with Y2 sides.Also, in this state, it is configured to:3 Bolt 90 is inserted in the pilot hole 55a of a lug boss 55 respectively, the lower surface of lug boss 55 is directly fixed on the edge of cylinder block 2 The mounting hole 2d of 2b.
It is configured to when retainer 550 is assembled into cylinder block 2 across TCC520 in the Y direction, be kept as a result, Positioning of the frame 550 relative to cylinder block 2 in fitting surface (in Y-Z plane).In addition, pass through positioning pin 11 and pilot hole 54a It is fitted into that retainer made of metal 550 more precisely is assembled in cylinder block 2 made of metal, thus by through hole 52a The axle center of center and bent axle 40 be accurately proceed contraposition.In addition, oil sealing 5 is accurately thus pressed into bent axle 40.
In addition, as shown in figure 15, TCC520 is formed with annulus around the lug boss 22 as the outer surface 20a of X2 sides The groove portion 21b of shape.In addition, as shown in figure 17, the circular sealing structure including flexible material is embedded in groove portion 21b Part 6.Also, containment member 6 is partially exposed to the guarantor opposite with TCC520 by be exposed to outer surface 20a from groove portion 21b Hold the part of the inner surface 50b around the lug boss 52 of frame 550.It is that is, (convex in retainer 550 (lug boss 52) and TCC520 Rise portion 22) between be configured with containment member 6, containment member 6 is the state compressed to arrow X1 directions, and it is (convex to be tightly attached to TCC520 Rise portion 22) with containment member 6 nearby the part of corresponding outer surface 20a and the inside table of retainer 550 (lug boss 52) Face 50b.
In addition, as shown in figure 17, back side (the inner surface 20b as X1 sides in the end 23 for being formed in TCC520 Side) groove portion 21a in be embedded with the containment member 7 including flexible material.Also, containment member 7 from groove portion 21a by revealing Go out the edge 2b opposite with TCC520 for being partially exposed to cylinder block 2 to inner surface 20b.That is, in cylinder block 2 (edge 2b) Containment member 7 is configured between TCC520 (the X1 side surfaces of end 23), containment member 7 is the shape compressed to arrow X1 directions State is tightly attached to the X1 side surfaces of the end 23 of the edge 2b and TCC520 of cylinder block 2.Be formed as flange shape end as a result, Containment member 7 is clipped between 23 and edge 2b, thus TCC520 is fixed to float from cylinder block 2 to arrow X2 directions defined The state of separating distance (about more than 0.5mm about below 3mm).
Therefore, in engine 500, as shown in figure 13, along the side of engine main body 10 (cylinder head 1 and cylinder block 2) The edge 2b of side (X2 sides) assembles TCC520 across containment member 7 with bolt 90 along arrow X1 directions.And in this state, It is configured to:With in the Y direction across with the outside table of the part of 40 corresponding TCC520 of bent axle that is protruded outward from through hole 22a Mode on the 20a of face assembles retainer 550 across containment member 6 from nearby side (X2 sides).As a result, in TCC520, such as Figure 14 Shown, there is the region S Chong Die with TCC520 in retainer 550.In addition, region S is " oil sealing fixing component and chain guard of the invention One example in overlapped region ".
Here, in the 5th embodiment, as shown in figure 15, in TCC520 made of resin, oriented separate outside is formed All shape walls 526 of arrow X2 directions (paper nearby direction) extension of surface 20a.All shape walls 526 are in the regulation of outer side surface 20a Region is seamlessly formed as all shapes, and the region 20c surrounded by all shape walls 526 is equipped in outer side surface 20a.In addition, in region 20c Central part be configured with lug boss 22.Also, as shown in figure 17, it is configured to assemble in the order in TCC520 and retainer 550 In the state of cylinder block 2 (engine main body 10), surround retainer 550 using all shape walls 526 and TCC520 is overlapped Region S (with reference to Figure 14).In addition, arrow X2 directions are an examples in " the 1st direction " of the invention.
That is, in engine 500, it is configured to be set on all shape walls 526 of the outer surface 20a of TCC520 using all shapes, The space 501 surrounded using all shape walls 526 is formed between retainer 550 and TCC520.In other words, using all shape walls 526, Region 20c in the outer surface 20a of TCC520 and along the flat of the arrow X2 directions retainer 550 opposite with region 20c Inner surface 50b part, constitute the space structure body of Special composition 501.Also, between retainer 550 and TCC520 Space 501 constitute Helmholtz's sympathetic response portion.
In addition, in the 5th embodiment, space of the composition as Helmholtz's sympathetic response portion in S (with reference to Figure 14) in region 501 all shape walls 526 are formed as flat inner side surface 50bs of the top 526a in the retainer 550 opposite with arrow X1 directions There is gap T between part.That is, top 526a is not exposed to inner surface 50b.In addition, the space 501 with gap T enters Oral area (opening portion) is formed as all shapes when overlooking.Also, the gap T of circumferentially cyclic annular connection is adjusted to defined size, from And make that there is the resonance frequency for playing erasure effect as the space 501 in Helmholtz's sympathetic response portion.Therefore, the gap of cyclic annular connection The volume of T can be obtained by the product of the perimeter of the width of top 526a, relative spacing (size in gap) and top 526a.And And gap T is sized according to the shape in space 501, so as to offset the hair as occurring source such as spinning movement of bent axle 40 The noise, particularly valve timing component near the inside of TCC520 and bent axle 40 that the vibration of motivation main body 10 causes Vibrate the maximum value of noise (action sound of the engagement action of timing chain 4 and crankshaft timing sprocket 41 etc.) brought and its neighbouring The corresponding frequency of value.In addition, crankshaft timing sprocket 41 is an example of " sprocket wheel " of the invention.
As a result, in engine 500, it is configured to utilize all shape walls for setting of 20a weeks shape of outer surface ground in TCC520 526, spinning movement of bent axle 40 etc. is made to cause what the inside of TCC520 generated as the vibration of the engine main body 10 of occurring source Noise (radiation sound) is not easy to be diffused into the outside of engine main body 10.That is, volume and space 501 based on gap T The ratio of volume be adjusted so as to cause Helmholtz's sympathetic response.In addition, the top 526a of all shape walls 526 across gap T with The inner surface 50b of retainer 550 will not generate rubbing for retainer 550 and all shape wall 526 (TCC520) to be non-contact It wipes, maintains the shape in the space 501 as Helmholtz's sympathetic response portion, all shape walls 526 will not occur mechanicalness and go bad (deformation). It is configured to by the use of this space 501 for maintaining the spatial form as Helmholtz's sympathetic response portion, during use with engine 500 Between independently offset the vibration of engine main body 10 caused by special frequency band in noise (radiation sound) (radiation sound is maximum Value and its neighbouring frequency).
In addition, in the 5th embodiment, as shown in Figure 14 and Figure 17,550 He of retainer surrounded by all shape walls 526 Space 501 and the engaging portion 41a of timing chain 4 and crankshaft timing sprocket 41 between TCC520 overlap.Therefore, as hair The engaging portion 41a of timing chain 4 and crankshaft timing sprocket 41 engagement of one of the noise source of motivation main body 10 is prolonged from bent axle 40 All shape walls 526 of week shape setting surround during the direction observation stretched.
In addition, as shown in figure 16, in the part of the main part 51 in the inner part of ratio lug boss 55 of the end of retainer 550 53 Equipped with there is defined projecting height and prominent abutting part 56 to arrow X1 directions (paper nearby side).In addition, abutting part 56 It is formed continuously with covering the end from the end of the Z1 sides of main part 51 to Z2 sides.As a result, as shown in figure 17, it is configured to: TCC520's has with the part of corresponding outer surface 20a near containment member 6 relative to the inner surface 50b of retainer 550 In the state of being configured with a gap, the abutting part 56 of retainer 550 near containment member 7 and from equipped with containment member 7 The opposite side in side be connected to the X2 side surfaces of end 23.
In addition, TCC520 has:Flange shape end 25a that the section of main part 21 is open to 30 side of skull (Z1 sides) and The flange shape end 25b that the section of main part 21 is open to 3 side of crankcase (Z2 sides).Also, make end 25a from below with TCC520 and skull 30 are combined with bolt (not shown) in a state that the department of assembly 30a of skull 30 is opposite, make end 25b from TCC520 and crankcase 3 are combined with bolt (not shown) in a state that top is opposite with the flange 3b of crankcase 3.In addition, end Containment member (not shown) is clipped between portion 25a and department of assembly 30a and between end 25b and flange 3b.
In addition, as shown in figure 13, in the inside of TCC520, crankshaft timing sprocket 41 is convex with the inside of loading cylinder head 1 The cam shaft timing chain wheel 42 of the driving of wheel shaft 45 is coupled by timing chain 4.In addition, in the outside of TCC520, in bent axle 40 Front end 40a is equipped with crank pulley (not shown).Also, it is assemblied in the water pump of the cooling water circulation of engine 500, car The subsidiary engines such as compressor of idle call class is driven by transmission belt of the carry in crank pulley.In addition, the rear end 40b of bent axle 40 and packet Include the power transfering part connection (not shown) of speed changer etc..The engine 500 of 5th embodiment is formed as described above.
In the 5th embodiment, following effect can be obtained.
That is, in the 5th embodiment, as described above, from the direction (X-direction) that bent axle 40 extends, all shape walls 526 Be by a manner of surrounding retainer 550 and the overlapped region S of TCC (timing chain covers) 20 week shape set and to holding All shape walls 526 that frame 550 and the mutual opposite arrow X2 directions of TCC520 protrude are set on the outer surface 20a of TCC520, thus The outer surface 20a of TCC520 is set on to all shapes, it, can be using spinning movement of bent axle 40 etc. as generation using this week shape wall 526 The noise, particularly the valve timing near the inside of TCC520 and bent axle 40 that the vibration of the engine main body 10 in source causes The noise (action sound of the engagement action of timing chain 4 and crankshaft timing sprocket 41 etc.) that the vibration of component is brought is enclosed in all shape walls 526 inside (region 20c).That is, all shape walls 526 set with utilizing all shapes make noise (the radiation sound of engine main body 10 Sound) it is difficult to escape to outside.At this point, it for example, is converted with the vibrational energy of TCC520 that will be vibrated with engine main body 10 It reduces the vibration of TCC520 for frictional energy (thermal energy) and seeks the situation for reducing noise different therewith, in engine 500 It is middle to have used using all shape walls 526 that mechanicalness goes bad occur as time goes by by the noise packet of engine main body 10 The composition of the inside (region 20c) of this week shape wall 526 is trapped among, therefore noise reducing effect will not timely deteriorate (reduction).Its As a result, the inhibition of noise (radiation sound) caused by the vibration of engine main body 10 can be maintained in term.
In addition, in the 5th embodiment, all shape walls 526 of all shapes are equipped in the outer surface 20a of TCC520, thus, it is possible to The rigidity of TCC520 made of resin is improved, therefore the vibration of engine main body 10 can be inhibited significantly to be transmitted to made of resin TCC520.The long-time service of engine 500 is not interfered with as a result, can reduce what the vibration of engine main body 10 was brought yet The vibration of TCC520 causes the noise (radiation sound) from engine main body 10 to outside diffusion horizontal in itself.
In addition, in the 5th embodiment, the space 501 between the retainer 550 and TCC520 that surrounded by all shape walls 526 Form Helmholtz's sympathetic response portion, and be set as with the top 526a by adjusting all shape walls 526 and week shape wall 526 with top The size of gap T between the inner surface 50b of the opposite retainers 550 of end 526a come make radiation sound have become the maximum and The resonance frequency of frequency near it.All shape walls 526 are surrounded as a result, and thus, it is possible to hold between retainer 550 and TCC520 It changes places the space 501 to be formed as Helmholtz's sympathetic response portion.Also, play erasure effect to have Helmholtz's sympathetic response portion Resonance frequency (such as radiation sound is maximum value and its neighbouring frequency), adjust the space as Helmholtz's sympathetic response portion Size (the top 526a of all shape walls 526 and the inner surface 50b of retainer 550 of the gap T of 501 inlet portion (opening portion) Between gap T size), therefore all shape walls 526 can be utilized according to the space between the retainer 550 and TCC520 surrounded Specific frequency in noise caused by 501 (Helmholtz's sympathetic response portions) effectively cancel out the vibration of engine main body 10 (radiation sound) Band.At this point, the top 526a of all shape walls 526 is non-contact, therefore not with the inner surface 50b of retainer 550 across gap T The friction of retainer 550 and all shape walls 526 (TCC520) can occur, maintain space 501 as Helmholtz's sympathetic response portion Shape.As a result, seek the situation of reduction noise with the vibrational energy of engine main body 10 is transformed to frictional energy etc. Difference, in addition to can be using all shape walls 526 that mechanicalness goes bad will not occur and continue to inhibit noise diffusion as time goes by Effect other than, continue the space functioned 501 by the use of as Helmholtz's sympathetic response portion, can also efficiently reduce and mobilize owner Noise caused by the vibration of body 10 (radiation sound) is horizontal in itself.
In addition, in the 5th embodiment, engine main body 10 includes timing chain 4 and crankshaft timing sprocket 41, from bent axle 40 The direction observation of extension, the space 501 between the retainer 550 and TCC520 that are surrounded by all shape walls 526 is configured to and timing The engaging portion 41a of chain 4 and crankshaft timing sprocket 41 is overlapped.As a result, by the timing chain 4 of one of the noise source of engine main body 10 All shape walls for setting of week shape ground when the engaging portion 41a engaged with crankshaft timing sprocket 41 is by from the direction that bent axle 40 extends 526 easily surround.Therefore, it can effectively inhibit and be penetrated through from the noise of engaging portion 41a radiation (diffusion) along arrow X2 directions The space 501 comparable part (region 20c) Chong Die with TCC520 and retainer 550 and be diffused into outside.
In addition, in the 5th embodiment, TCC520 is made of resin, and retainer 550 is made of aluminium alloy.As a result, Even if it is configured to be made of resin TCC520 and for the lightweight of engine 500 in order to accurately install oil sealing 5 In the case that retainer 550 is made with aluminium alloy in bent axle 40, all shape walls 526 that can be also set using all shapes are come effectively simultaneously The noise reducing effect for being readily derived engine main body 10 (radiates persistently subtracting for sound caused by the vibration of engine main body 10 Few effect).In addition, the TCC520 for the side end for being assembled in engine main body 10 is made of resin, thus with utilizing metal component The situation for forming TCC520 is compared, and can easily improve the sound absorption properties of the noise to being spread from engine main body 10.
(the 6th embodiment)
Next, illustrate the 6th embodiment with reference to Figure 18 and Figure 19.In the 6th embodiment, illustrate in addition to TCC620 Other than all shape walls 626 of side, the example of all shape walls 657 is also formed in retainer 650.In addition, all shape walls 657 are of the invention One example of " the 1st week shape wall ", all shape walls 626 are an examples of " the 2nd week shape wall " of the invention.In addition, retainer 650 It is an example of " oil sealing fixing component " of the invention.In addition, pair similarly formed with above-mentioned 5th embodiment in the figure, The reference numeral identical with the 5th embodiment is marked to be illustrated.
In the engine 600 of the 6th embodiment of the present invention, as shown in figure 19, it is configured to protect made of aluminium alloy Frame 650 is held to keep oil sealing 5.Here, in the case where observing retainer 650 from the back side, as shown in figure 18, formed oriented separate All shape walls 657 of arrow X1 directions (paper nearby direction) extension of the inner surface 650b of main part 51.Including all shape walls 657 Side surface 650b is circumferentially seamlessly formed as all shapes, and the region 650c surrounded by all shape walls 657 is equipped in inner surface 650b. In addition, engine 600 is an example of " internal combustion engine " of the invention.In addition, inner surface 650b is of the invention " opposite One example in face ".
Also, it as shown in figure 19, is equipped with TCC620 and retainer in order in cylinder block 2 (engine main body 10) In the state of 650, it is configured to utilize the overlapped region of all shape walls 626 and all 657 encirclement retainers 650 of shape wall and TCC620 S (with reference to Figure 18).In this case, all shapes of the inner surface 650b of the retainer 650 of inside are set to using all shapes Wall 657 forms the space 601 (region 250c) surrounded by all shape walls 657 between retainer 650 and TCC620.
In addition, in the 6th embodiment, as shown in figure 19, all shape walls 657 with top 657a with along arrow X1 directions phase To TCC620 outer surface 20a between formed with the mode of gap T.That is, other than the 626a of top, top 657a It is not contacted with the outer surface 20a of TCC620.In addition, gap T is formed as all shapes when overlooking.In addition, in the 6th embodiment, Also gap T is adjusted to defined size so that the space 601 as Helmholtz's sympathetic response portion, which has, plays being total to for erasure effect Ring frequency.As a result, in engine 600, Helmholtz's sympathetic response portion is formed by the space 601 between retainer 650 and TCC620. In addition, outer surface 20a is an example of " opposite face " of the invention.
Therefore, in engine 600, it is configured to:All shape walls of the outer surface 20a of TCC620 are set to using all shapes 626 are set to all shape walls 657 of the inner surface 650b of retainer 650, spinning movement of bent axle 40 etc. with all shapes as hair The noise that the vibration of the engine main body 10 of source of students causes the inside of TCC620 to generate is not easy to be diffused into the outer of engine main body 10 Portion.In addition, it is configured to:Utilize the space 601 between the retainer 650 and TCC620 surrounded by all shape walls 626 and all shape walls 657 (Helmholtz's sympathetic response portion), the special frequency band (radiation in noise (radiation sound) caused by offsetting the vibration of engine main body 10 Sound is maximum value and its neighbouring frequency).In addition, outer surface 20a is an example of " opposite face " of the invention.Separately Outside, arrow X1 directions are an examples in " the 1st direction " of the invention.
In addition, in the 6th embodiment, all shape walls 657 of inside and all shape walls 626 in outside are extending with bent axle 40 Interval is opposite as defined in being separated on the orthogonal direction in arrow X2 directions (Y-direction and Z-direction).That is, as shown in figure 19, in all shape walls Between 657 and all shape walls 626, it is formed with the sound channel 602 to be packed into predetermined distance and in a manner of tortuous.In addition, sound channel 602 It is formed when looking down along all shapes of all shape walls 657 (all shape walls 626).
In the region S (with reference to Figure 18) being overlapped as a result, in TCC620 and retainer 650, inside as all shape walls 657 Region (than the region of all shape walls 626 in the outer part) other than region 650c in region 650c and region S only by with TCC620 Couple with the sound channel 602 that retainer 650 does not contact with each other and (do not rub).In addition, Helmholtz will be maintained as using sound channel 602 The resonance frequency in the space 601 of the spatial form in sympathetic response portion is set as specified value.In addition, at the same time, using with sound channel 602 And as all shape walls (all shape walls 657 and all shape walls 626) of dual structure, it is formd in the S of region with higher soundproof effect Structure.In addition, other compositions of the engine 600 of the 6th embodiment are similary with above-mentioned 5th embodiment.
In the 6th embodiment, following effect can be obtained.
In the 6th embodiment, it is configured to:It will be set on to retainer 650 along all shape walls 626 that arrow X2 directions extend TCC620, and with all shape walls 626 on the orthogonal direction (Y-direction and Z-direction) in the arrow X2 directions extended with bent axle 40 Across gap T-phase to configuration, all shape walls 657 extended to TCC620 along arrow X1 directions are set on retainer 650.It bows as a result, Apparent time can form all shape walls that all shape walls 626 surround all shape walls 657 from outside week shape.That is, can utilize become from TCC620 to The all shape walls 626 and all shapes of the dual structure of all shape walls 657 extended from retainer 650 to TCC620 that retainer 650 extends Wall (all shape walls 626 and all shape walls 657), the outer edge near zone week shape in the space 601 between retainer 650 and TCC620 Ground forms the curved structure (sound-insulating structure) for including sound channel 602.It can further suppress and be drawn by the vibration of engine main body 10 as a result, The noise for playing the inside generation of TCC620 escapes to the outside of engine main body 10.
In addition, in the 6th embodiment, the space 601 between the retainer 650 and TCC620 that surrounded by all shape walls 657 Helmholtz's sympathetic response portion is formed, and is set as the top of the top 626a and all shape walls 626 by adjusting all shape walls 626 respectively The size of gap T between the inner surface 650b of retainer 650 opposite 626a, the top 657a of all shape walls 657 and all shapes The size of gap T between the outer surface 20a of TCC620 opposite the top 657a of wall 657 and all shape walls 657 and all shapes The size of gap T between wall 626 has defined resonance frequency.As a result, as all shape walls (all shape walls of dual structure 657 and all shape walls 626) can be readily formed between retainer 650 and TCC620 as Helmholtz's sympathetic response by surrounding The space 601 in portion.Also, in order to make Helmholtz's sympathetic response portion that there is the resonance frequency for playing erasure effect, conduct is adjusted together Size (the top 626a and guarantor of all shape walls 626 of the gap T of the sound channel 602 of the inlet portion in the space 601 in Helmholtz's sympathetic response portion Hold the top of the size of the gap T between the inner surface 650b of frame 650, the top 657a of all shape walls 657 and all shape walls 657 Between the size of gap T between the outer surface 20a of TCC620 opposite 657a and all shape walls 657 and all shape walls 626 The size of gap T), therefore the space 601 (Helmholtz's sympathetic response portion) surrounded by all shape walls 657 of inside can be utilized effectively to support The special frequency band to disappear in the noise as caused by the vibration of engine main body 10 (radiation sound).
In addition, at this point, the top 626a of all shape walls 626 connects across gap T and the inner surface 650b of retainer 650 to be non- It touches, in addition, the top 657a of all shape walls 657 is non-contact, therefore can occur across the outer surface 20a of gap T and TCC620 The friction of retainer 650 (all shape walls 657) and TCC620 (all shape walls 626) are with regard to that can be maintained as the space in Helmholtz's sympathetic response portion 601 shape.As a result, in addition to the lasting inhibition of all shape walls (all shape walls 657 and all shape walls 626) as dual structure is made an uproar Other than the effect of sound diffusion, moreover it is possible to further persistently be subtracted using the space 601 of the function in lasting performance Helmholtz's sympathetic response portion Noise caused by the vibration of few engine main body 10 (radiation sound) is horizontal in itself.
In addition, in the 6th embodiment, other than in all shape walls 626 for being equipped with all shapes made of resin on TCC620, All shape walls 657 of all shapes also are provided on retainer made of metal 650, thus, it is possible to TCC620 and retainer 650 is respectively increased Rigidity, therefore the vibration of engine main body 10 can significantly be inhibited to be transmitted to TCC620 and retainer 650.It does not influence as a result, The long-time service of engine 600, can reduce the vibration of TCC620 and retainer 650 that the vibration of engine main body 10 is brought causes Noise (radiation sound) from from engine main body 10 to outside diffusion is horizontal in itself.In addition, other effects of the 6th embodiment with Above-mentioned 5th embodiment is similary.
(the 7th embodiment)
Next, illustrate the 7th embodiment with reference to Figure 17, Figure 20 and Figure 21.In the 7th embodiment, illustrate in profit Space 501 (with reference to Figure 17) between the retainer 750 and TCC720 that are formed with all shape walls 626 of TCC720 sides is equipped with sound absorber The example of material 701.In addition, in figure, pair similarly formed with above-mentioned 5th embodiment, attached identical with the 5th embodiment of mark Icon is remembered to be illustrated.
In the engine 700 of the 7th embodiment of the present invention, as shown in figure 20, it is configured to be assemblied in hair in TCC720 In the state of motivation main body 10 (cylinder head 1 and cylinder block 2), oil sealing 5 is kept with retainer 750.Also, in the 7th embodiment In, in the space 501 (with reference to Figure 17) between the retainer 750 and TCC720 formed by all shape walls 726 of TCC720 sides also It is configured with the sound-absorbing material 701 including the material with sound-absorbing effect.In addition, Figure 20 is the 750-750 line (click and sweep along Figure 21 Line) sectional view.In addition, engine 300 is an example of " internal combustion engine " of the invention.
Here, based material (foaming is rubber material) can be foamed with polyurethane stock material etc. to form sound-absorbing material 701, Sound-absorbing material 701 can also be formed with the fibers such as glass fibre based material.In addition, it can also apply the vinyl system of bubbles Into sound-absorbing material etc..That is, it is preferred that form sound-absorbing material 701 with the porous material comprising air layer.
In addition, as shown in figure 21, from the direction extended from bent axle 40, sound-absorbing material 701 is to surround bent axle 40 and oil The mode of envelope 5 is filled in space 501.Therefore, sound-absorbing material 701 with timing chain 4 and crankshaft timing sprocket 41 by also engaging The mode of part 41a (with reference to Figure 20) overlappings is configured.As a result, in the 7th embodiment, effectively pressed down using sound-absorbing material 701 The noise of engine main body 10 processed is in the part (area in the space 501 (with reference to Figure 17) for being equivalent to TCC720 and the overlapping of retainer 750 Domain 20c) it is penetrated through along arrow X2 directions and is diffused into outside.
In addition, it as shown in figure 20, in the case of filled with sound-absorbing material 701, is overlapped in TCC720 and retainer 750 Several gaps can be also remained in space 501 (with reference to Figure 17).For example, in the top 726a and retainer 750 of all shape walls 726 Gap T is remained between the part of side surface 50b.Even if being configured to be equipped with sound-absorbing material 701 as a result, top 726a will not It is contacted with 50b weeks shape of inner surface, retainer 750 and all shape walls 726 (TCC720) will not be rubbed.In addition, the 7th implements Other compositions of the engine 700 of mode are similary with above-mentioned 5th embodiment.
In the 7th embodiment, following effect can be obtained.
In the 7th embodiment, as described above, it is configured in the retainer 750 and TCC720 surrounded by all shape walls 726 Between space 501 be equipped with sound-absorbing material 701.It can make as a result, between the retainer 750 and TCC720 that are surrounded by all shape walls 726 Space 501 in sound-absorbing material 701 absorb the noise (radiate sound) that the vibration of engine main body 10 is brought.Therefore, at this In the case of kind, make an uproar with the vibrational energy of engine main body 10 is transformed to frictional energy etc. in engine 700 to seek to reduce The composition of sound is different, in addition to using all shape walls 726 that mechanicalness goes bad will not occur and persistently inhibit noise as time goes by Other than the effect of diffusion, moreover it is possible to be continuously obtained noise reducing effect using the sound-absorbing material 701 of absorption of noise.As a result, Noise caused by the vibration of engine main body 10 effectively further being inhibited (radiation sound).In addition, its of the 7th embodiment Its effect is similary with above-mentioned 5th embodiment.
(the 8th embodiment)
Next, illustrate the 8th embodiment with reference to Figure 17, Figure 20, Figure 22 and Figure 23.In the 8th embodiment, with inciting somebody to action Sound-absorbing material 701 is substantially filled with (with reference to Figure 20) in above-mentioned 7th embodiment being configured in space 501 (with reference to Figure 17) not Together, illustrate to be partially provided with the example of sound-absorbing material 801 in space 501.In addition, in the figure pair with above-mentioned 7th embodiment Same form marks the reference numeral identical with the 7th embodiment to be illustrated.
In the engine 800 of the 8th embodiment of the present invention, as shown in figure 23, in all shape walls 826 by TCC820 sides The sound-absorbing material for including the material with sound-absorbing effect is configured in space 501 between the retainer 850 and TCC820 of formation 801.In addition, engine 800 is an example of " internal combustion engine " of the invention.
Here, in the 8th embodiment, as shown in Figure 22 and Figure 23, sound-absorbing material 801 is partially filled in space 501. That is, space 501, which includes filling (configuration), has the region of sound-absorbing material 801 and containing the air for being not filled by (configuration) sound-absorbing material 801 The region of layer.Therefore, in the state of being configured with sound-absorbing material 801 in 501 inside points of space, the top of all shape walls 826 is adjusted The size of gap T between the inner surface 50b of retainer 850 opposite 826a and top 826a so that Special composition 501 Space structure body (including all shape walls 826, the region 20c (outer surface 20a) of TCC820, the retainer opposite with region 20c The space structure body of 850 inner surface 50b) there is the resonance frequency for playing erasure effect.In addition, Figure 22 is along Figure 23 The sectional view of 850-850 lines (chain-dotted line).
In addition, as shown in figure 23, sound-absorbing material 801 is configured in a manner of surrounding bent axle 40 and oil sealing 5 in space 501. In addition, engaging portion 41a of the sound-absorbing material 801 also with timing chain 4 and crankshaft timing sprocket 41 overlaps.In addition, the 8th implements Other compositions of the engine 800 of mode are similary with above-mentioned 5th embodiment.
In the 8th embodiment, following effect can be obtained.
In the 8th embodiment, as described above, sound-absorbing material 801 is partially filled in space 501, as a result, space 501, which include filling (configuration), the region of sound-absorbing material 801 and the area containing the air layer for being not filled by (configuration) sound-absorbing material 801 Domain.It is configured in space 501 in the state of sound-absorbing material 801 as a result, the space structure body of Special composition 501 can also made Helmholtz's sympathetic response portion of erasure effect to play special frequency band functions.Therefore, in engine 800, in addition to inhaling Other than the sound-absorbing effect of sound material 801, moreover it is possible to utilize the sky in the space 501 for forming the function of persistently playing Helmholtz's sympathetic response portion Between structure come noise (radiation sound) caused by continuing to reduce the vibration of engine main body 10 it is horizontal itself.
In addition, in the 8th embodiment, with surround bent axle 40 and oil sealing 5 and also with timing chain 4 and crankshaft timing sprocket Sound-absorbing material 801 is configured in space 501 mode of 41 engaging portion 41a overlappings.As a result, in engine 800, even if In the case where being partially disposed in sound-absorbing material 801 in space 501, can also effectively inhibit including from engaging portion 41a The noise of the engine main body 10 of the noise of releasing is equivalent to the sky that TCC820 and retainer 850 are overlapped to the perforation of arrow X2 directions Between 501 part (region 20c) and be diffused into outside.In addition, other effects of the 8th embodiment and above-mentioned 7th embodiment Equally.
In addition, it will be understood that embodiment of disclosure all aspect be illustrate and it is non-limiting.The scope of the present invention Do not illustrate to represent by the above embodiment, but represented by the scope of the claims, is additionally included in and the scope of the claims Whole changes in equivalent meaning and scope.
For example, in the variation of above-mentioned 1st~the 8th embodiment and the 1st embodiment, about retainer 50 (150, 250,350,550,750,850) the peripheral part 54b of lug boss 54, show by along be connected to TCC20 (320,420, 520,620,720,820) example that the part of the side end face 23a of end 23 is formed along the linearly extended side end face 54c of Z-direction Son, but the invention is not restricted to this.That is, the peripheral part 54b of lug boss 54 can also be formed as circle-shaped.Be formed as circumference Even if in the case where the side end face 23a lines with TCC20 contact and abut, it is opposite also to carry out TCC20 by the peripheral part 54b of shape In the positioning of retainer 50 (Y1 directions and Y2 directions) in the Y direction.
In addition, in above-mentioned 2nd embodiment, the peripheral part 255b of the lug boss 255 about retainer 250 is shown The example being made of the part of the side end face 23a along the end 23 for being connected to TCC20 along the linearly extended side end face 255c of Z-direction Son, but the invention is not restricted to this.That is, the peripheral part 255b of lug boss 255 can also be formed as circle-shaped.Be formed as round In the case that the side end face 23a lines of the peripheral part 255b and TCC20 of all shapes are contacted and are abutted, can also carry out TCC20 relative to The positioning of retainer 250 (Y1 directions and Y2 directions) in the Y direction.
In addition, in above-mentioned 2nd embodiment, show by the abutting part 257 of retainer 250 main part 51 protrusion Be formed as circular example around portion 52, but the invention is not restricted to this.As long as that is, equipped with TCC20 is connected to along X1 directions Outer surface 20a corresponding near containment member 6 part " the 2nd chain guard abutting part ", can also be configured to Equipped with the abutting part for example with partial arc shape other than annular shape.
In addition, in the variation of above-mentioned 1st~the 8th embodiment and the 1st embodiment, show from main part 51 The end of the end of Z1 sides to Z2 sides has been formed continuously the abutting part of retainer 50 (150,250,350,550,650,750,850) 56 example, but the invention is not restricted to this.As long as equipped with the corresponding nearby with containment member 7 of TCC20 is connected to along X1 directions Outer surface 20a part " the 1st chain guard abutting part ", can also be configured to be equipped with from the end of Z1 sides to Z2 sides The discontinuous abutting part in end.
In addition, in above-mentioned 4th embodiment, show and be formed with TCC420's by annular shape around through hole 22a The example of holding section 28, but the invention is not restricted to this.As long as the lower surface of engagement pawl 28a is connected to gear from the lateral X1 sides of X2 Plate portion 52b by TCC420 so that keep (fixation) in " the oil sealing fixing component holding section " of the inner surface 50b sides of retainer 50 , the holding section with such as partial arc shape other than annular shape can also be equipped with.
In addition, in above-mentioned 3rd embodiment, show the abutting by side end face 23a and side end face 54c and be fitted into The chimeric of hole 27a and peripheral part 55b carries out positioning of the TCC320 relative to retainer 350 on the direction orthogonal with X-direction Composition example, but the invention is not restricted to this.That is, it can also be configured to only through the embedding of embedded hole 27a and peripheral part 55b It closes to carry out positioning of the TCC320 relative to retainer 350 on the direction orthogonal with X-direction.
In addition, in above-mentioned 3rd embodiment, show by being respectively formed as circle-shaped embedded hole 27a and periphery The chimeric of portion 55b carries out the example of the composition of positioning of the TCC320 relative to retainer 350 on the direction orthogonal with X-direction Son, but the invention is not restricted to this.That is, if the chimeric of embedded hole 27a and peripheral part 55b can be carried out, embedded hole 27a's The peripheral surface of inner peripheral surface and peripheral part 55b can also have such as polygonal shape other than round.
In addition, in the variation of above-mentioned 1st~the 8th embodiment and the 1st embodiment, showing makes containment member 7 Height dimension be more than the height dimension of containment member 6 so as to which containment member 7 be made to be more than sealing structure to the reaction force F1 of TCC20 Part 6 is to the example of the composition of the reaction force F2 of TCC20, and but the invention is not restricted to this.For example, it is also possible to it is configured to make them Shape (height dimension under natural conditions) is equal, on the other hand makes the hardness of the material of composition containment member 6 and form to seal The hardness of the material of component 6 is different, and containment member 7 is thus made to be more than containment member 6 to TCC20 to the reaction force F1 of TCC20 Reaction force F2.
In addition, in the variation of above-mentioned 1st~the 8th embodiment and the 1st embodiment, show in retainer 50 The main part 51 of (150,250,350,550,650,750,850) be equipped with to X1 directions it is prominent and be connected to TCC20 (320,420, 520,620,720,820) the example with the abutting part 56 of the part of corresponding outer surface 20a near containment member 7, still The present invention is not limited thereto.For example, it is also possible to it is equipped with not prominent to X1 directions " the 1st chain guard abutting part " on retainer 50. In this case, it is connected to can near containment member 7 the flat inboard (inner surface 50b) of retainer 50 The flat outer surface 20a of TCC20 can also be set in outer side surface 20a to X2 directions (50 side of retainer) prominent convex Portion makes the flat inboard (inner surface 50b) of retainer 50 be connected to the protrusion.As long as " the 1st chain of the present invention can be utilized Cover abutting part " realizes relative positionings of the TCC20 relative to retainer 50 in short transverse (X-direction).
In addition, in above-mentioned 2nd and the 3rd embodiment, show and be equipped on the main part 51 of retainer 250 (350) The part of outer surface 20a corresponding near containment member 6 that be prominent to X1 directions and being connected to TCC20 (320) is supported The example of socket part 257, but the invention is not restricted to this.For example, it is also possible to it is equipped on retainer 250 not prominent to X1 directions " the 2nd chain guard abutting part ".In such a case, it is possible to make the flat inboard of retainer 250 (interior near containment member 6 Side surface 650b) the flat outer surface 20a of TCC20 is connected to, it can also be equipped with to X2 directions and (protect in outer side surface 20a Hold 250 side of frame) prominent protrusion makes the flat inboard (inner surface 650b) of retainer 250 be connected to the protrusion.As long as Phases of the TCC20 relative to retainer 250 in short transverse (X-direction) can be realized using " the 2nd chain guard abutting part " of the present invention To positioning.
In addition, in above-mentioned 5th embodiment, show and form oriented retainer 550 in the outer surface 20a of TCC520 All shape walls 526 of inner surface 50b extensions carry out the example of Special composition 501, but the invention is not restricted to this.It that is, can also As shown in above-mentioned 6th embodiment, only formed to the outer surface 20a of TCC520 and prolonged in the inner surface 650b of retainer 650 The all shape walls 657 stretched are formed in " space " of the present invention without forming all shape walls 526.
In addition, in above-mentioned 5th embodiment, show and formed in the outer surface 20a of TCC520 to retainer 550 All shape walls 526 of the part extension of flat inner surface 50b carry out the example of Special composition 501, and but the invention is not restricted to this. That is, can also be configured to from the outer surface 20a of TCC520 and the inner surface 50b of retainer 550 be respectively equipped with they Top separates predetermined distance all shape walls that mutual opposite mode protrudes in X-direction (the 1st direction) to form the " empty of the present invention Between "." space " of the present invention can also be set between TCC520 and retainer 550 by being formed by the variation, and can be made The space plays the function in Helmholtz's sympathetic response portion.
In addition, in above-mentioned 6th embodiment, show and all shape walls 626 are formed on TCC620 and in retainer All shape walls 657 are formed on 650, " all shape walls " of the present invention is configured to the example of dual structure, but the present invention is not limited to This.For example, it is also possible to a weight or " all shape walls " of the double present invention are re-formed in the inside of all shape walls 657.In this way, by more " all shape walls " of the present invention is reformed, can be further improved using the region S that TCC620 and retainer 650 are overlapped to engine The lasting soundproof effect of the noise of main body 10.
In addition, the above-mentioned 5th~in the 8th embodiment, show the main body along retainer 550 (650,750,850) Portion 51 outer shape week shape formed the present invention " all shape walls " example, but the invention is not restricted to this." the week of the present invention Other than the flat shape of shape wall " can also be above-mentioned.For example, it is also possible to there is circle in a manner of surrounding bent axle 40 and oil sealing 5 Shape or elliptical shape (long hole shape) are formed " all shape walls " of the present invention.Wherein, the retainer being preferably made of all shape walls Space between 550 (650,750,850) and TCC520 (620,720,820) and timing chain 4 and crankshaft timing sprocket 41 are nibbled Close part 41a overlappings or positioned at its outer fix.
In addition, the above-mentioned 5th~in the 8th embodiment, it shows all shape walls 526 (626,726,826) seamlessly Be formed as the example of all shapes, but the invention is not restricted to this.As long as that is, with surround retainer 550 (650,750,850) and Region S overlapped TCC520 (620,720,820) mode week shape set, the part that can also be set as wall is cut All shape walls of mouth.In addition, in this case, the end and its near zone that can also be configured to all shape walls of cut out portion exist Interval as defined in being separated on 2nd direction (Y-direction or Z-direction) is mutually opposite (repetition).
In addition, in above-mentioned 7th embodiment, show and sound-absorbing material 701 is substantially filled in being carried out in space 501 The example of configuration, but the invention is not restricted to this.For example, it is also possible to by be divided into it is multiple in the state of " sound-absorbing material " by island Shape is configured in space 501.
In addition, in above-mentioned 6th embodiment, illustrate only and all shape walls 626 are formed on TCC620 and in retainer All shape walls 657 are formed on 650, " all shape walls " of the present invention is configured to the example of dual structure, but the present invention is not limited to This.I.e., it is possible to the sound-absorbing material 701 shown in above-mentioned 7th embodiment is filled in the sky of the inside of all shape walls of dual structure Between 601, week in dual structure is configured in the sound-absorbing material 801 that can also be formed into the shape shown in above-mentioned 8th embodiment The space 601 of the inside of shape wall makes the part in space 601 retain (presence) as former state.
In addition, in the variation of above-mentioned 1st~the 8th embodiment and the 1st embodiment, show with aluminium alloy come structure Into the example of retainer 50 (150,250,350,550,650,750,850), but the invention is not restricted to this.That is, it can also use Metal material other than aluminium alloy is formed " the oil sealing fixing component " of the present invention.
In addition, in the variation of above-mentioned 1st~the 8th embodiment and the 1st embodiment, show used as resin The nylon part 66 of material forms the example of TCC20 (320,420,520,620,720,820), and but the invention is not restricted to this. That is, the resin material other than nylon part 66 can also be used to form " chain guard " of the present invention, can also use other than resin material Material come form the present invention " chain guard ".
In addition, in the variation of above-mentioned 1st~the 8th embodiment and the 1st embodiment, show and apply the present invention In the example of the engine 100 of the automobile including gasoline engine, but the invention is not restricted to this.As long as that is, with bent axle Internal combustion engine can also apply the present invention to the gas engine (internal combustions such as diesel engine and natural gas engine other than gasoline engine Machine) chain cover structure.Alternatively, it is also possible to the driving source of such as equipment machine other than applying the present invention to as automobile The chain cover structure of (power source) and the internal combustion engine of carrying.

Claims (13)

1. a kind of internal combustion engine, which is characterized in that have:
Chain guard is assemblied in the body of the internal-combustion engine with bent axle;
Oil sealing is installed near the above-mentioned chain guard of above-mentioned bent axle;
Oil sealing fixing component made of metal is configured at the side opposite with above-mentioned body of the internal-combustion engine of above-mentioned chain guard, is used for Fixed above-mentioned oil sealing;And
1st containment member is configured between above-mentioned oil sealing fixing component and above-mentioned chain guard,
The 2nd containment member is also equipped with, above-mentioned 2nd containment member is configured between above-mentioned chain guard and above-mentioned body of the internal-combustion engine,
Above-mentioned oil sealing fixing component includes the 1st chain guard abutting part, and above-mentioned 1st chain guard abutting part is in the attached of above-mentioned 2nd containment member Closely abutted with above-mentioned chain guard,
It is configured to, in the shape for being equipped with the 1st gap between above-mentioned chain guard and above-mentioned body of the internal-combustion engine using above-mentioned 2nd containment member Under state, above-mentioned 1st chain guard abutting part is connected to above-mentioned chain along from the 1st direction of the lateral above-mentioned chain guard of above-mentioned oil sealing fixing component Cover.
2. internal combustion engine according to claim 1, wherein,
It is configured to, in a state that above-mentioned chain guard and above-mentioned oil sealing fixing component are assembled in above-mentioned body of the internal-combustion engine, the above-mentioned 2nd is close It seals component and reaction force of above-mentioned 1st containment member to above-mentioned chain guard is more than to the reaction force of above-mentioned chain guard.
3. according to internal combustion engine described in claims 1 or 2, wherein,
Pin component is also equipped with, above-mentioned pin component is set on above-mentioned internal combustion owner in a manner of prominent to above-mentioned oil sealing fixing component side Body,
Above-mentioned oil sealing fixing component includes location hole, and above-mentioned location hole is used to carry out above-mentioned oil by chimeric with above-mentioned pin component Seal positioning of the fixing component relative to above-mentioned body of the internal-combustion engine.
4. internal combustion engine according to claim 1, wherein,
Above-mentioned oil sealing fixing component includes the 1st positioning region, and above-mentioned 1st positioning region is orthogonal with the extending direction of above-mentioned bent axle the Above-mentioned chain guard is connected on 2 directions, thus carries out above-mentioned chain guard relative to above-mentioned oil sealing fixing component on above-mentioned 2nd direction Positioning.
5. internal combustion engine according to claim 4, wherein,
Above-mentioned 1st positioning region is included with for above-mentioned oil sealing fixing component to be assembled to the pilot hole of above-mentioned body of the internal-combustion engine Assemble the peripheral part of protrusion.
6. internal combustion engine according to claim 5, wherein,
Above-mentioned chain guard includes the 2nd positioning region, and it is convex that above-mentioned 2nd positioning region includes the assembling that above-mentioned assembling protrusion can be supplied to be inserted into and be fitted into Play embedded hole,
It is configured to, utilizes above-mentioned 1st positioning region of the peripheral part including above-mentioned assembling protrusion of above-mentioned oil sealing fixing component and upper The 2nd positioning region including above-mentioned assembling protrusion embedded hole of chain guard is stated to carry out above-mentioned chain guard relative to above-mentioned oil sealing fixing component Positioning on above-mentioned 2nd direction.
7. internal combustion engine according to claim 1, wherein,
Above-mentioned oil sealing fixing component includes the 2nd chain guard abutting part, and above-mentioned 2nd chain guard abutting part is in the attached of above-mentioned 1st containment member Above-mentioned chain guard is closely connected to,
It is configured to, the 2nd gap is being equipped between above-mentioned oil sealing fixing component and above-mentioned chain guard using above-mentioned 1st containment member Under state, above-mentioned 2nd chain guard abutting part is connected to above-mentioned chain along from the 1st direction of the lateral above-mentioned chain guard of above-mentioned oil sealing fixing component Cover.
8. internal combustion engine according to claim 1, wherein,
Above-mentioned chain guard includes oil sealing fixing component holding section, and above-mentioned oil sealing fixing component holding section is in above-mentioned 1st containment member The opposite with above-mentioned chain guard of above-mentioned oil sealing fixing component is nearby sticked in by the bent axle inserting hole of above-mentioned oil sealing fixing component Side,
It is configured to, the 2nd gap is being equipped between above-mentioned oil sealing fixing component and above-mentioned chain guard using above-mentioned 1st containment member Under state, above-mentioned oil sealing fixing component holding section is lateral above-mentioned along one opposite with above-mentioned chain guard from above-mentioned oil sealing fixing component 1st direction of oil sealing fixing component is connected to above-mentioned oil sealing fixing component.
9. internal combustion engine according to claim 8, wherein,
It is configured to, above-mentioned oil sealing fixing component holding section is by being also connected in the bent axle inserting hole of above-mentioned oil sealing fixing component Above-mentioned chain guard of the face so as to also play on 2nd direction orthogonal with the extending direction of above-mentioned bent axle is fixed relative to above-mentioned oil sealing The function of the positioning region of component.
10. internal combustion engine according to claim 1, wherein,
At least one party in above-mentioned oil sealing fixing component and above-mentioned chain guard includes all shape walls, and above-mentioned week shape wall is with from above-mentioned bent axle Extending direction surrounds above-mentioned oil sealing fixing component when observing and the mode in the overlapped region of above-mentioned chain guard is set as all shapes, upper It states oil sealing fixing component and mutual the 1st opposite side of above-mentioned chain guard projects upwards.
11. internal combustion engine according to claim 10, wherein,
Space between the above-mentioned oil sealing fixing component surrounded by above-mentioned all shape walls and above-mentioned chain guard forms Helmholtz's sympathetic response portion, And by adjusting the top of the above-mentioned all shape walls above-mentioned oil sealing fixing component opposite with the top of above-mentioned week shape wall and above-mentioned The size in the gap between the opposite face of at least one party in chain guard is set as having defined resonance frequency.
12. internal combustion engine according to claim 10, wherein,
Above-mentioned week shape wall includes:1st week shape wall, extends from above-mentioned oil sealing fixing component to above-mentioned chain guard;And the 2nd week shape Wall, separated on 2nd direction orthogonal with above-mentioned 1st direction that above-mentioned bent axle extends with above-mentioned 1st week shape wall as defined between Every relative configuration, extend from above-mentioned chain guard to above-mentioned oil sealing fixing component.
13. internal combustion engine according to claim 10, wherein,
Sound-absorbing material is also equipped with, above-mentioned sound-absorbing material is set on above-mentioned oil sealing fixing component and above-mentioned chain by above-mentioned all shape wall encirclements Space between cover.
CN201410514006.0A 2013-10-04 2014-09-29 Internal combustion engine Active CN104514647B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2013-209162 2013-10-04
JP2013209162A JP6197552B2 (en) 2013-10-04 2013-10-04 Internal combustion engine and chain cover structure of internal combustion engine
JP2014-014274 2014-01-29
JP2014014274A JP6191479B2 (en) 2014-01-29 2014-01-29 Internal combustion engine

Publications (2)

Publication Number Publication Date
CN104514647A CN104514647A (en) 2015-04-15
CN104514647B true CN104514647B (en) 2018-06-22

Family

ID=51625952

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410514006.0A Active CN104514647B (en) 2013-10-04 2014-09-29 Internal combustion engine

Country Status (3)

Country Link
US (1) US9388765B2 (en)
EP (1) EP2857665B1 (en)
CN (1) CN104514647B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6651778B2 (en) * 2015-10-07 2020-02-19 トヨタ紡織株式会社 Internal combustion engine cover structure
FR3055921B1 (en) * 2016-09-13 2019-04-26 Peugeot Citroen Automobiles Sa Mechanical piece with housing for housing a pin
JP6750468B2 (en) 2016-11-18 2020-09-02 アイシン精機株式会社 Internal combustion engine
JP6583368B2 (en) * 2017-08-24 2019-10-02 マツダ株式会社 Powertrain unit for vehicles
DE102018133460A1 (en) * 2018-12-21 2020-06-25 Elringklinger Ag Cover unit

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4261310A (en) * 1979-02-08 1981-04-14 Laws Jr Harold W Assembly and method for preventing cam walk in automotive engines
JPS5773330U (en) * 1980-10-23 1982-05-06
US4607601A (en) * 1984-02-23 1986-08-26 Compagnie Des Transmissions Mechaniques Sedis Detachable timing gear cassette unit for an explosion or internal combustion engine
JPH07111146B2 (en) * 1989-02-08 1995-11-29 日産自動車株式会社 Chain cover device for internal combustion engine
JP2589429Y2 (en) * 1992-06-05 1999-01-27 株式会社クボタ Oil seal device at the rear end of the engine crankshaft
DE4240464A1 (en) * 1992-12-02 1994-06-09 Opel Adam Ag Cylinder crankcase for an internal combustion engine with ventilation channels arranged therein
US5645024A (en) * 1995-10-26 1997-07-08 Cloyes Gear & Products Camshaft end-play adjustment device
JP3318292B2 (en) * 1999-09-03 2002-08-26 本田技研工業株式会社 Storage chamber structure of endless flexible member for driving camshaft of internal combustion engine
US6752119B2 (en) * 2001-09-14 2004-06-22 Milford Coleman Removable timing chain cover
JP2006242138A (en) 2005-03-04 2006-09-14 Toyota Motor Corp Timing chain cover structure
JP4461113B2 (en) * 2006-03-29 2010-05-12 三菱重工業株式会社 Engine oil seal lubrication system
JP2008106809A (en) 2006-10-24 2008-05-08 Honda Motor Co Ltd Damping plate
JP2010032021A (en) * 2008-07-31 2010-02-12 Toyota Motor Corp Oil seal structure
US20110278803A1 (en) * 2009-01-23 2011-11-17 Toyota Jidosha Kabushiki Kaisha Seal structure
US20120091665A1 (en) * 2009-04-07 2012-04-19 Uchiyama Manufacturing Corp. Seal Structure
JP5094807B2 (en) * 2009-09-24 2012-12-12 株式会社クボタ engine
US8967110B2 (en) 2012-11-16 2015-03-03 GM Global Technology Operations LLC Engine front cover with rotational support insert

Also Published As

Publication number Publication date
EP2857665B1 (en) 2017-08-02
CN104514647A (en) 2015-04-15
US9388765B2 (en) 2016-07-12
US20150096526A1 (en) 2015-04-09
EP2857665A1 (en) 2015-04-08

Similar Documents

Publication Publication Date Title
DE60204273T2 (en) Crankcase ventilation system
JP5463111B2 (en) Lubricating device for portable 4-cycle engine
US4230087A (en) Low-noise-level internal combustion engine
JP2006144700A (en) Piston for internal combustion engine, combination of piston and piston ring for internal combustion engine
US7441533B1 (en) Cover assembly for an internal combustion engine
DE502005002682D1 (en) Valve transmission of an internal combustion engine
JPH10131733A (en) Lubricator for valve system of engine
JP2005120973A (en) Vertical shaft engine
JP3566087B2 (en) Four cycle engine
CN205877061U (en) A damping assembly for automobile engine
ES2154559B1 (en) Piston motor with torsional swing damper, as well as torsional swing shock absorber for a piston motor.
AU2004272873A1 (en) Engine-driven working machine
US6199842B1 (en) Pneumatically controlled, active hydraulic anti-vibration support
BRPI0515085A (en) damping system for a lancet using compressed air
AT505626T (en) Device for separating oil parts from the crankcase ventilation gas of an internal combustion engine
MX2007006901A (en) Lubricating oil composition.
MXPA04006492A (en) Valve stem seal assembly.
BR0010430A (en) Linear compressor
BR9909444A (en) Split flywheel
US7194994B1 (en) Bracket assembly for mounting accessories to the front of a small-block Ford motor
DE602004009253D1 (en) Crank mechanism of an internal combustion engine with multi-jointed transmission
TWI280327B (en) Sound-proof structure in power unit
AU2009201571B2 (en) Monolithic block and valve train for a four-stroke engine
BRPI0411349A (en) piston for an internal combustion engine
DE60132246D1 (en) PISTON FOR INTERNAL COMBUSTION ENGINE

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant